Word: key Part of Speech: verb Etymology: From Middle English keye, kaye, keiȝe, from Old English cǣġ (“key, solution, experiment”) (whence also Scots key and kay (“key”)), from Anglo-Frisian Proto-West Germanic *kaiju, of uncertain origin. The only sure cognates are Saterland Frisian Koai (“key”), West Frisian kaai (“key”), and North Frisian kai, koie (“key”). Possibly from Proto-Germanic *kēgaz, *kēguz (“stake, post, pole”), from Proto-Indo-European *ǵogʰ-, *ǵegʰ-, *ǵegʰn- (“branch, stake, bush”), which would make it cognate with Middle Low German kāk (“whipping post, pillory”), and perhaps to Middle Dutch keige (“javelin, spear”) and Middle Low German keie, keige (“spear”). For the semantic development, note that medieval keys were simply long poles (ending in a hook) with which a crossbar obstructing a door from the inside could be removed from the outside, by lifting it through a hole in the door. Liberman has noted, however, "The original meaning of *kaig-jo- was presumably '*pin with a twisted end.' Words with the root *kai- followed by a consonant meaning 'crooked, bent; twisted' are common only in the North Germanic languages." Pronunciation: /kiː/, /ki/ 1. To fit (a lock) with a key. 2. To fit (pieces of a mechanical assembly) with a key to maintain the orientation between them. 3. To mark or indicate with a symbol indicating membership in a class. Example: So I worked on a tissue-paper copy of the perimeter plan, outlining groupings of plants of the same species and keying them with letters for the species. Example: The volume closes with thirty pages of "Notes, critical and explanatory," in which Thomson provides seventy-six longer or shorter notes keyed to specific sections of the synopsis. 4. To depress (a telegraph key). 5. To operate (the transmitter switch of a two-way radio). 6. (more usually to key in) To enter (information) by typing on a keyboard or keypad. Example: Our instructor told us to key in our user IDs. 7. To vandalize (a car, etc.) by scratching with an implement such as a key. Labels: colloquial Example: He keyed the car that had taken his parking spot. 8. To link (as one might do with a key or legend). Example: The American Heart Association has prepared their own guide to classification and, keying it with the Standard Nomenclature of Diseases, have done much to encourage a concise yet complete diagnosis. Example: The workman's compensation system rests on incentives (premium payments) that are keyed to the immediate and relatively undeniable nature of injuries; […] 9. To be identified as a certain taxon when using a key. Labels: intransitive 10. To modify (an advertisement) so as to target a particular group or demographic. Labels: transitive Example: Keying advertisements and counting the number of inquiries received or the number of coupons returned to indicate the "pulling power" of a particular piece of copy or the coverage of a particular advertising medium. Example: Another popular way to key ads and mailings is to use a suite number, room number, department number, desk number, etc. as part of the ordering address. With a classified ad, using such a key may increase your ad cost. Why? Because you're using an extra word or two to key the ad. 11. To attune to; to set at; to pitch. Example: To Ethel alone she addressed a stray remark, keyed below the sound of other voices. 12. To fasten or secure firmly; to fasten or tighten with keys or wedges. Example: they Mouldered and keyed the Portico Arches with Pieces of Stone, because Brick was not strong enough 13. To prepare for plastering by adding the key (that part of the plastering which is forced through between the laths and holds the rest in place). 14. To provide an arch with a keystone. Example: The last arch in the permanant ^([sic]) bridge was keyed on March 26, 1850, and a single track was brought into use for goods trains on July 20. 15. Clipping of chromakey. Labels: abbreviation, alt-of, clipping Example: After keying the background, you’d be left with a transparent background, where you can install anything—from images to videos that blend seamlessly into the main subject of the shot.