noun

1. Archaic a point of time designating the beginning or end of a period
2. a set date, as for payment, termination of tenancy, etc.
3. a set period of time; duration; specif.,
   1. a division of a school year, as a semester or quarter, during which a course of studies is given
   2. ☆ the stipulated duration of an appointment to a particular office elected to a four-year term
   3. the normal elapsed period for birth after conception; also, delivery at the end of this period; parturition
4. conditions of a contract, agreement, sale, etc.
5. mutual relationship between or among persons; footing on speaking terms
6. a word or phrase having a limiting and definite meaning in some science, art, etc. “tergum” is a zoological term
7. any word or phrase used in a definite or precise sense; expression a colloquial term
8. words that express ideas in a specified way to speak in derogatory terms
9. 1. Now Rare a limit; boundary; extremity
   2. Obsolete conditions; circumstances
10. Archit. a boundary post, esp. one consisting of a pedestal topped by a bust, as of the god Terminus
11. Law
    1. the time a court is in session
    2. the length of time for which an estate is granted
    3. the estate itself
    4. time allowed a debtor to pay
12. Logic
    1. either of two concepts that have a stated relation, as the subject and predicate of a proposition
    2. any of the three elements which function variously as subjects and predicates in a syllogism
13. Math.
    1. either of the two quantities of a fraction or a ratio
    2. each of the quantities in a series or sequence
    3. each of the quantities connected by plus or minus signs in an algebraic expression

Etymology: ME terme < OFr < L terminus, a limit, boundary, end < IE *termṇ, a boundary stake < base *ter-, to cross over, go beyond > trans-, Gr terma, goal

transitive verb

1. terminal
2. termination