(grammar) A noun case used in some languages to indicate movement away from something, removal, separation. In English grammar, it corresponds roughly to the use in English of prepositions "of", "from", "away from", and "concerning". In Latin grammar, the ablative case (cāsus ablātīvus) includes functions derived from the Indo-European ablative, instrumental, comitative, associative and locative cases; these cases express concepts similar to those of the English prepositions "of"/"from", "by", "with", "to"/"with", and "at"/"in", respectively. Here/hence/hither, there/thence/thither, and where/whence/whither are the only English words with separate forms for the ablative (motion away from) and lative (motion towards) cases.

(grammar) case used to indicate movement from an object. In English, this is usually expressed by the prepositions from or off of, as in "down off of the house." Hungarian is a language that uses the delative case, see -ról.

(grammar) A noun case used to indicate adjacent location. In English, this is usually expressed by the prepositions near, at, or by, as in "by the house." Languages that use the adessive case include Finnish, Hungarian, Estonian, Lezgi and Lithuanian.

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

In the least favorable of all possible circumstances.

(grammar) A grammatical case used to indicate the agent of a transitive verb in ergative-absolutive languages.

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

(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.

(computer science) Making a distinction between upper-case and lower-case letters.

(computer science) Treating or interpreting upper- and lowercase letters as being the same.