Alternative form of caller ID

(countable) The telephone number and/or name of the originator of an incoming telephone call, displayed on the screen of the telephone or other electronic device receiving the call.

plural of id reaction

An eczematous dermatitis accompanying a variety of infectious disorders, often in response to an inflammatory tinea of the feet.

(linguistics) Initialism of immediate dominance/linear precedence: applied to a form of grammar that maintains separate rule sets in these two areas which (unlike in a traditional phrase structure grammar) need not be processed simultaneously.

plural of caller ID

plural of email ID

(India) e-mail address

And everything of that sort.

Optimal; being the best possibility. / Perfect, flawless, having no defects. / Pertaining to ideas, or to a given idea. / Existing only in the mind; conceptual, imaginary.