(law enforcement, slang) A criminal investigation that has not been solved after a considerable time but remains “on the books” and may be reopened when new evidence appears.

Alternative spelling of headcase

Alternative spelling of headcase / Used other than figuratively or idiomatically: see head, case.

(slang) A gay person who pretends to be heterosexual. / A person who is shunned, ignored, or considered to be an embarrassment.

(law) A legal action intended to set a precedent. / (computing) Any of a set of conditions and variables used to test an application.

(grammar) the form of a noun or pronoun used as the object of a verb or a preposition.

(grammar) The case used to indicate movement out of something; for example, out of the house. Some languages that make use of the elative are Finnish, Hungarian, and Estonian.

(grammar) Noun case used to indicate a temporary state of being, such as the site of an action or the time at which it took place.

In the least favorable of all possible circumstances.

Alternative form of nutcase