apt

adj

Etymology: From Old French apte, from Latin aptus (“suitable, fitting”). Either from obsolete apere (“to fasten, to join, to fit”), akin to apisci (“to reach, attain”) (compare with Greek ἅπτειν (áptein, “to fasten”) and Sanskrit आप्त (āpta, “fit”), from आप् (āp, “to reach, attain”)) or from *h₂ep- (“to join, fit (in)”).

1. Suitable; appropriate; fit or fitted; suited.

   “an apt metaphor”

   “apt punishment”

2. Having a habitual tendency; habitually liable or likely; disposed towards.

   “This tree, if unprotected, is apt to be stripped of its leaves by a leaf-cutting ant.”

   “that lofty pity with which prosperous folk are apt to remember their grandfathers”

3. Ready; especially fitted or qualified (to do something); quick to learn.

   “a pupil apt to learn”

   “an apt scholar”

name

1. Initialism of automatically programmed tool: a high-level language for numerically controlled machine tools.
2. Initialism of advanced packaging tool: a package management system used by Debian and Debian-based distributions, also used by other Linux distributions.
3. Initialism of Alabama Public Television.
4. Initialism of American Public Television.

noun

1. Initialism of automation presses tooling.
2. Initialism of advanced passenger train.
3. Abbreviation of apartment, preferred by the United States Postal Service; compare Apt. and apt..
4. Initialism of advanced persistent threat.

   “The FBI has linked the incident to a North Korean APT it tracks as TraderTraitor, which the agency has been monitoring since 2022 for its attacks on blockchain companies.”

5. Initialism of arbitrage pricing theory.
6. Initialism of anatomical pathology technologist.
7. Initialism of acyl protein thioesterase.