Glossary

Below you'll find a list of terminology, abbreviations and similar, as commonly used by the Honkai: Star Rail community, used to simplify and facilitate rapid communication when discussing gameplay.
Please contribute to the page by adding more terms and definitions alphabetically.
These terms are mostly used in the English language. Most of these terms, especially abbreviations, are not explicitly case-sensitive, but nevertheless are listed in the case most commonly found.
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Contents: # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
==#==
* 1.1, 1.2, etc. — Referring to the game's Version 1.1, 1.2,... update.
* 1 Piece, 2 Piece, 4 Piece (or 1PC, 2PC, 4PC) — The number of Relics of the same set on a Character.
* 50-50 (or 50/50) — The 50 percent chance of getting a Rate Up 5-Star Character in Warps due to not having any Warps spent or getting a Rate Up Character as the previous 5-Star Warp.
* 80 — To ascend and level a character to Lv. 80.
==A==
* ADC — Abbreviation of ATK/DMG Bonus/CRIT Rate or CRIT DMG, a common main stat selection for Relics.
* AFK — Abbreviation of "Away from Keyboard."
* Aggro — Community driven term to explain the chances of enemies attacking allies.
* AoE — Abbreviation of "Area of Effect."
* ATK — Abbreviation of the "Attack" attribute.
==B==
* Back-load — Refers to doing the large majority of damage at the end of a rotation or character's field time. For example, a DoT comp requires the majority of its damage on the enemies turns.
* Best in Slot (or BiS) — A Light Cone or Relic that performs the best for a character.
* BP — Abbreviation of "Nameless Honor," taken from the term "Battle Pass."
* BS — Abbreviation of Black Swan.
* Build — A specific combination of a Light Cone and Relics equipped on a character. May also include talent priority.
==C==
* Capped — The state of the Trailblaze Power counter being at the natural recharge limit.
* Carry — One or more party members who contribute significantly to the party. The most common types of carrying are through dealing the most damage or healing party members.
* CBT — Abbreviation of "Closed Beta Test," referring to the beta tests of the game in the past prior to its global release. 
* CC — Abbreviation of either "Crowd Control" or the "CRIT Rate" or "Critical Chance" attribute, depending on the context.
* CD — Abbreviation of either "Cooldown" or the "CRIT DMG" or "Critical Damage" attribute, depending on the context.
* CDMG — Abbreviation of Crit DMG or "Critical Damage" attribute.
* Cogs — Abbreviation of the Light Cone Meshing Cogs.
* Comp — Abbreviation of "Team Composition," which refers to a particular combination of characters used in a team.
* CR or CRate — Abbreviation of "CRIT Rate" attribute.
* Crit Fishing — The practice of using extremely low CRIT Rate (in order to use higher damage stats such as CRIT DMG) and taking multiple attempts to achieve a run where all or most attacks crit.
* Crit Value (or CV) — A way of quantifying the amount of investment into total CRIT on a character or artifact. \text{CV} = \text{CRIT DMG} + 2 \times \text{CRIT Rate}. On a single relic, a crit value of 20-30 is considered decent, 30-40 is considered very good, and 40 or more is considered excellent. 
==D==
* DD — Abbreviation of "Damage Dealer."
* DDD — Abbreviation of the Light Cone Dance! Dance! Dance!.
* DEF — Abbreviation of "Defense" attribute.
* Defense Shred (or DEF Shred) — Decreasing the Defense of enemies.
* DHIL — Abbreviation of Dan Heng • Imbibitor Lunae.
* Dolphin — A player who spends moderate amounts of money on the game.
* DPR — Abbreviation of "Damage per Rotation."
* DPS — Abbreviation of "Damage per Second." Typically used to refer to any character who serves as the party's main damage dealer, but also may be used to refer to the party's general damage output. In the community, is sometimes jokingly abbreviated as "Damage per Screenshot" in situations where one tries to display high damage numbers through Crit Fishing.
* DU — Abbreviation of Divergent Universe.
==E==
* E0, E1, E2, E3, E4, E5, E6 — The Eidolons of a character, often to refer to how many Eidolons a character has.
* E6S5 — A character (typically a 5-Star character) with six Eidolons, equipped with a Light Cone (typically a 5-Star Light Cone) whose Superimpose rank is at 5 (see S1, S2, ...). The absolute peak of a character's power, usually requiring significant money expenditure to achieve.
* EoTP — Abbreviation of the Light Cone Eyes of the Prey.
* ERR — Abbreviation of "Energy Regeneration Rate" attribute.
* Experience Books (or EXP Books, XP Books) — Refers to the Character EXP Materials that can be used to increase a Character's level.
==F==
* FF — Abbreviation of Firefly.
* Flagship Event — The main event during a Version, which offers a free 4-Star character or Light Cone.
* Flex — Shortened form of Flexible, often refers to slots in certain teams that have multiple viable character options. Can also refer to sharing an impressive feat such as a showcases of luck, high amount of investment on a character, or skillful gameplay.
* Free to Play (or F2P) — Refers to players who do not spend real money on the game.
* Front-load — Refers to doing the large majority of damage at the beginning of a rotation or character's field time. 
* FuA — Refers to Follow-Up Attacks performed by specific characters.
* FX — Abbreviation of Fu Xuan.
==G==
* Gacha — Refers to games that exchange in-game currency for random virtual items, with an option to purchase the in-game currency with real-world money. 
* Gear — Refers to Relics equipped on Characters, may include Light Cones.
* GNSW — Abbreviation of the Light Cone Good Night and Sleep Well.
* GoR — Abbreviation of faction Garden of Recollection.
* GR — Abbreviation of faction Galaxy Rangers.
* GS — Abbreviation of faction Genius Society.
* Guarantee — Certainty of obtaining the Rate Up Character in Warps due to having lost the 50/50 before.
* Gui/Guin — Abbreviation of Guinaifen.
==H==
* Hard Pity — The phenomenon of having a guaranteed 5-Star on the 90th Warp.
* Healer — Refers to a character whose talents can regenerate HP.
* HF — Abbreviation of faction History Fictionologists.
* HP — Abbreviation of "Health Points," "Hit Points," or "Health."
* HSS — Abbreviation of Herta Space Station.
* Hypercarry — A team archetype that focuses on using teammates to help a single character, known as the Hypercarry, deal the overwhelming majority of the team's damage. For example, Acheron, the Hypercarry, in a team with Pela (reduces enemies' Defense and charges Acherons ultimate via debuff application), Silver Wolf (reduces enemies' Defense, Lightning Resistance and charges Acherons ultimatevia debuff application) and Gallagher (Sustains the team while applying debuffs for Acherons ultimate regeneration).
==I==
==J==
* JL — Abbreviation of Jingliu.
* JY — Abbreviation of Jing Yuan.
==K==
* Kit — Refers collectively to a character's Talents.
* KoB — Abbreviation of faction Knights of Beauty.
==L==
==M==
* Main (plural Mains) — (noun) A character that a player chooses to primarily use; (noun) A player who chooses to primarily use a particular character; (verb) The action of choosing to primarily use a character.
* Main DPS or MDPS — A generic term that tends to refer to the character that does the majority of a team's damage.
* Mainstat — The primary stat(s) of Relics 
* Mats — Abbreviation of "Materials."
* MC — Abbreviation of "Main Character," the Trailblazer. 
**DMC/HMC/PMC are abbreviations referring to Trailblazer when they are in their Destruction/Harmony/Preservation forms respectively.
* Metagame (or Meta) — The strategic aspect of a game that transcends the boundaries of conventional gameplay. In Honkai: Star Rail, the meta involves decisions intended to make combat gameplay more efficient, such as selecting characters preferred for their higher damage outputs, or using certain team compositions of characters with good synergy.
* MHY — Abbreviation of miHoYo, the developers of Honkai: Star Rail.
* MoC — Abbreviation of Memory of Chaos.
* MoTP — Abbreviation of the Light Cone Memories of the Past.
* Moveset — Refers collectively to a character's Combat Talents.
* Multi (plural Multis/Multies, also "Multipull," "10 Pull," "10×," etc.) — Colloquial term for doing 10 Warps at once.
==N==
* Nerf — A character, weapon or item having its effectiveness at a task reduced due to a change from the developers.
* NPC — Abbreviation of "Non-player character" or "Non-playable character."
* Nuke — Refers to dealing a large amount of damage in a short time.
* Nuker - Refers to a character that deals a large amount of damage in a short time.
==O==
* Off-piece — A Relic that does not match the Relic Set in use, but is still equipped due to it having better affixes than the previous counterpart, namely because the minimum requirement for the preferred relic set bonus has already been fulfilled.
* Overworld — The includes all areas accessible via the map. May also refer to the Overworld of Jarilo-VI.
==P==
* Pay to Win (or P2W) — The idea of a game where the player can only achieve significant success by spending money. Typically used derogatorily to comment on a game's monetization system(s).
* PC — Abbreviation of "Player character" or Playable Character.
* PF — Abbreviation of Pure Fiction.
* Pity — The counter for Warps that guarantees a 4-Star or 5-Star after a given amount. See soft pity and hard pity.
* Proc — To activate or trigger an effect such as a buff or debuff.
* Pulls — Warping on a Warp or the number of Warps saved up in Stellar Jade, Star Rail Passes, or Star Rail Special Passes.
==Q==
* QPQ — Abbreviation for Quid Pro Quo.
==R==
* RAT — Acronym for a team composition containing Dr. Ratio, Aventurine, and Topaz.
* Reroll — Creating new accounts in hopes of getting the desired 5-Star Character through Warps.
* Rerun — When a Character Warp or Event returns after its first run.
* RES — Abbreviation of "Resistance" attribute.
* Resistance Shred (or RES Shred) — Decreasing Elemental Resistance of enemies.
* RM — Abbreviation of Ruan Mei.
* RMT — "Real Money Transaction," i.e., the act of exchanging real life currency for in-game ones (e.g., USD for Oneiric Shards).
* RNG — Abbreviation of "Random Number Generator." In the community, RNG is synonymous with "luck." Good RNG equates to good luck and vice versa.
* Rolls — Warping on a Warp or the number of Warps saved up in Stellar Jades, Star Rail Passes, or Star Rail Special Passes. Also refers to obtaining Relics from clearing Caverns of Corrosion, defeating Bosses, etc. or fully enhancing an Relic in hope of getting good substats.
* Roll Value (or RV) — The percentage of useful possible substat rolls over the highest potential roll of said substat of a 5-Star Relic. The highest possible roll for an 5-Star Artifact substat has a value of 100% with each lower rolls subsequently losing its value by 10%. The Current RV of an Artifact is the total value of its useful substat rolls and the Maximum RV of an Artifact is the highest potential substat value it can possibly get. The Maximum RV for a 5-Star Artifact is 900%.
* Rotation/Rot — A specific usage order of multiple characters' abilities in a team. Once all the relevant abilities have been used and are available again, a rotation may repeat.
==S==
* S1, S2, S3, S4, S5 — The Superimposition of a Light Cone.
* Server reset — A specific server time which marks the beginning of a new day, refreshing most of the timed content such as daily login bonuses, Daily Training, and events.
* Set — Shortened form for Relic Set.
* Signature/Sig — A blanket term for Light Cones that not only displays art and lore about a specific character, but also tends to be their best Light Cone option. For limited banner 5-Star characters, these Light Cones will be run alongside them. For example, An Instant Before A Gaze is Argenti's signature Light Cone.
* SU — Abbreviation of Simulated Universe.
* Sub DPS — A generic term that tends to refer to characters in the team that deal a significant amount of damage but aren't the main DPS.
* Substat (or Subs) — The secondary stat(s) for Relics.
==T==
* Talent Priority — A recommended order in which one should raise the level of a character's Talents.
* Time-gated — Refers to content or features that only become available after set time intervals. Examples include the missions that require a server reset to unlock, such as Night on the Great Mine (Part 2) which is only available after completing Night on the Great Mine (Part 1) and waiting for server reset.
* TB — Abbreviation of Trailblazer.
* TTK — Initialism for "Time to Kill."
==U==
* Unit — Refers to a playable character.
* Utility Support (or Supp) — Tends to refer to the characters that can support the team with crowd control, buff, shield, damage reduction, or healing abilities.
==V==
* V1.1, V1.2, etc. — Referring to the game's Version 1.1, 1.2, ... update.
* VA — Abbreviation of Voice Actor.
==W==
* Web Event — Events that do not involve normal gameplay or do not take place within the game, and are usually accessed through a web browser.
* Weeklies — Refers to any task that gets reset at the start of a new week, such as the Echo of War whose rewards can only be claimed three times week.
* Whale — Players who spend large amounts of money on the game.
==X==
==Y==
==Z==