nightmare
A very unpleasant or frightening dream.
Any bad, miserable, difficult or terrifying situation or experience that arouses anxiety, terror, agony or great displeasure.
A demon or monster, thought to plague people while they slept and cause a feeling of suffocation and terror during sleep.
A feeling of extreme anxiety or suffocation experienced during sleep; sleep paralysis.

nightmared
simple past and past participle of nightmare

nightmares
plural of nightmare

nightmarishness
The state or condition of being nightmarish.

nightside
The side of a planet or other body that faces away from the sun or star around which it orbits.

nightsides
plural of nightside

nightstand
A small table or cabinet, often with one or more drawers or shelves, placed beside the head of a bed.

nightstands
plural of nightstand

nighty
Alternative spelling of nightie.

nignay
Something trivial or worthless.

nignays
plural of nignay

nigrescence
The process of becoming black or dark; blackening.
A dark complexion.
Blackishness.

nigrescences
plural of nigrescence

nigric
The black text of a liturgical book indicating the text which is to be read out loud by the celebrant.

nigrification
The act or process of making black.

nigrin
Any of a class of lectin isolated from the bark of elderberry (Sambucus nigra)

nigrins
plural of nigrin

nigrosine
A dark blue synthetic dyestuff of the induline group.

nigrosines
plural of nigrosine

nigrostriata
plural of nigrostriatum

nigrostriatum
The boundary between the substantia nigra and the striatum

nihilation
The act of nihilating.

nihilations
plural of nihilation

nihilator
That which nihilates.

nihilators
plural of nihilator

nihilhood
nullness or negation

nihilianism
A doctrine stating that, Christ's essence being divine, his human nature was nothing.

nihilification
Synonym of nothingization.

nihilism
The view that all endeavours are devoid of objective meaning.
The rejection of, or opposition to, religious beliefs, (inherent or objective) moral principles, legal rules, etc., often due to the view that life is meaningless (sense 1).
The rejection of non-proven or non-rationalized assertions in the social and political spheres of society.
A delusion that oneself or the world, or parts thereof, have ceased to exist.
Alternative letter-case form of Nihilism (“a Russian movement of the 1860s that rejected all authority and promoted the use of violence for political change”).
A doctrine grounded on the negation of one or more meaningful aspects of life; in particular, the view that nothing in the world actually exists.
Something that is regarded as meaningless.

nihilisms
plural of nihilism

nihilities
plural of nihility

nihility
The state or fact of being nothing; nothingness, nullity; nonexistence.
A nonexistent thing; nothing.

niiko
A folk dance from southern Somalia similar to twerking, generally performed by women.

nikaah
Alternative form of nikah.

nikaahs
plural of nikaah

nikah
The Islamic marriage ceremony

nikahnama
An Islamic matrimonial deed, setting out the partners' rights to divorce, polygamy, etc.

nikahnamas
plural of nikahnama

nikahs
plural of nikah

nikkud
Alternative spelling of nikud.

nikolaitism
Alternative form of Nicolaitism.

nikud
The system of optional diacritics attached to Hebrew letters that indicate vowels and consonant variations.

nilpotence
The quality of being nilpotent.

nilpotency
The quality of being nilpotent.

nilsoliton
A certain type of left-invariant metric on a nilpotent Lie group.

nilsolitons
plural of nilsoliton

nilspace
The maximum subspace of a representation space R on which a representation of a group G applied to a subgroup of G is unipotent.

nilspaces
plural of nilspace

nilsystem
A topological system (H,X) such that a nilpotent Lie group G = acts transitively on X.

nilsystems
plural of nilsystem

nimb
A nimbus or halo.

nimbidin
A mixture of tetranortriterpenes that is the bitter principle of neem

nimbification
The formation of clouds.

nimbility
nimbleness

nimbleness
The quality of being nimble.

nimblenesses
plural of nimbleness

nimbocumulus
A cumulonimbus cloud.

nimbs
plural of nimb

nimbyism
The ideology of a nimby.

nimbyisms
plural of nimbyism

nimieties
plural of nimiety

nimiety
State of being in excess, more than is needed.

nimisin
A neologism (or other word not in common use) in Toki Pona.

nincompoopism
The beliefs and behaviours of a nincompoop; folly; idiocy.

ninefoldness
The property of being ninefold.

nineman
Alternative form of 9-man.

niner
Something nine inches long, or holding nine gallons, etc.
The digit 9 in the NATO phonetic alphabet.

niners
plural of niner

ninesome
A group of nine persons or things.

ninesomes
plural of ninesome

ninnery
Ninnyish behavior; foolery; foolishness.

ninnyism
predisposition to act like a ninny

ninnyisms
plural of ninnyism

nio
Alternative letter-case form of Nio.

niphablepsia
photokeratitis

nippiness
The condition of being nippy.

nipplegasm
An orgasm or orgasmic-like sensation derived from the stimulation of the nipples.

nipplegasms
plural of nipplegasm

nipter
The ecclesiastical ceremony of washing the feet; maundy.

niqabi
A Muslim woman wearing a niqab

niqabis
plural of niqabi

niqqud
Alternative spelling of nikud.

nirk
A tariff, rate, or current price, especially one established by authority.

nirks
plural of nirk

nirmanakaya
The third aspect of the Trikaya: the physical manifestation of a Buddha in time and space.

nirmanakayas
plural of nirmanakaya

niru
A company within the military of the Qing dynasty.

nitch
Alternative form of knitch (“a small bundle”).

nitches
plural of nitch

nitespot
Alternative form of nightspot.

nitidity
Quality of being nitid; brightness; clarity.

nitpickery
nitpicking behaviour

nitpickiness
The quality of being nitpicky; pedantry over trivia.

nitramidine
An early form of nitrocellulose

nitration
The reaction of something with nitric acid; especially such a reaction, in the presence of sulphuric acid, to introduce a nitro functional group into a compound.

nitrations
plural of nitration

nitridation
Reaction or treatment with a nitride.

nitridations
plural of nitridation

nitriding
A method of case hardening steel by the surface absorption of nitrogen by heating with ammonia.

nitridings
plural of nitriding

nitridization
The process of nitridizing.

nitridizations
plural of nitridization

nitrifaction
Synonym of nitrification.

nitrification
The process of nitrifying

nitrifications
plural of nitrification

nitritation
treatment with nitrites

nitritations
plural of nitritation

nitrituria
The presence of nitrite in the urine.

nitrobenzyl
Any of three isomeric univalent radicals derived from nitrobenzene

nitrobenzyls
plural of nitrobenzyl

nitrocarburization
The process of nitrocarburizing.

nitrogenation
The process of nitrogenating.

nitrogenations
plural of nitrogenation

nitrogenisation
Alternative form of nitrogenization.

nitrogenization
Act or process of nitrogenizing.

nitrogenizations
plural of nitrogenization

nitrolim
Alternative form of nitrolime.

nitrolyses
plural of nitrolysis

nitrolysis
Any reaction with nitric acid that results in the breakup of a molecule
Any of various processes in which nitric acid is used to break down sludge or similar waste products

nitrophily
The property of being nitrophilous.

nitrophorin
Any of a group of hemoproteins found in the saliva of blood-feeding insects.

nitrophorins
plural of nitrophorin

nitropropane
Either of two nitro derivatives of propane

nitropropanes
plural of nitropropane

nitroreduction
A reaction in which a nitro group is reduced, and often converted into an amino group

nitroreductions
plural of nitroreduction

nitrosylation
The reaction of nitric oxide with a biological compound, especially with a sulfur containing part of a protein as a posttranslational modification.
Any reaction with a nitrosyl compound.

nitrosylations
plural of nitrosylation