com·pact 1 
(kəm-păkt, kŏm-, kŏmpăkt′)
(kəm-păkt, kŏm-, kŏmpăkt′)adj.
1. Closely and firmly united or packed together; dense: compact clusters of flowers.
2. Occupying little space compared with others of its type: a compact camera; a compact car.
3. Brief and to the point; concise: a compact narration.
4. Marked by or having a short solid physique: a wrestler of compact build.
v. (kəm-păkt) com·pact·ed, com·pact·ing, com·pacts
v.tr.
1. To press or join firmly together: a kitchen device that compacted the trash.
2.
a. To make by pressing or joining together; compose.
b. To consolidate; combine.
v.intr.
To be capable of being pressed tightly together or to become so pressed: garbage that compacts easily.
n. (kŏmpăkt′)
1. A small case containing a mirror, pressed powder, and a powder puff.
2. An automobile that is bigger in size than a subcompact but smaller than a midsize car.
[Middle English, from Latin compāctus, past participle of compingere, to put together : com-, com- + pangere, to fasten; see pag- in the Appendix of Indo-European roots.]
com·pactly adv.
com·pactness n.