controlled (adj) — sense 3 Resulting from a comparison with control samples; including a comparison (control) group. (describing clinical trials)
control (noun) — sense 5 The method and means of governing the performance of any apparatus, machine or system, such as a lever, handle or button.
control (noun) — sense 6 Restraint or ability to contain one's movements or emotions, or self-control.
control (verb) — sense 2 (construed with for) To design (an experiment) so that the effects of one or more variables are reduced or eliminated.
control (verb) — sense 3 To verify the accuracy of (something or someone, especially a financial account) by comparison with another account.
conversation (noun) — sense 1 Expression and exchange of individual ideas through talking with other people; also, a set instance or occasion of such talking.
conversation (noun) — sense 2 Expression and exchange of individual ideas through talking with other people; also, a set instance or occasion of such talking.: Dialogue or…
cook (verb) — sense 1 To prepare food for eating, typically by heating it, combining it with other ingredients, seasoning it, preparing it for serving, etc.
cook (verb) — sense 2 To apply heat to food in the course of preparing it, particularly in a way that transforms it rather than simply making it warmer.
cool (noun) — sense 1 A measure of butter, usually around 40lb; a container holding such an amount of butter.
cool (noun) — sense 4 A moderate or refreshing state of cold; moderate temperature of the air between hot and cold; coolness.
copy (noun) — sense 1 The result of copying; an identical or nearly identical duplicate of an original.
copy (noun) — sense 2 The result of copying; an identical or nearly identical duplicate of an original.: The result of gene or chromosomal duplication.
core (noun) — sense 1 A deposit paid by the purchaser of a rebuilt part, to be refunded on return of a used, rebuildable part, or the returned rebuildable part itself.
core (noun) — sense 1 In general usage, an essential part of a thing surrounded by other essential things.: The central part of a fruit, containing the kernels or seeds.
core (noun) — sense 2 In general usage, an essential part of a thing surrounded by other essential things.: The heart or inner part of a physical thing.
core (noun) — sense 3 In general usage, an essential part of a thing surrounded by other essential things.: The anatomical core, muscles which bridge abdomen and thorax.