—adj. 1. having all parts or elements; lacking nothing; whole; entire; full: a complete set of Mark Twain's writings. 2. finished; ended; concluded: a complete orbit. 3. having all the required or customary characteristics, skills, or the like; consummate; perfect in kind or quality: a complete scholar. 4. thorough; entire; total; undivided, uncompromised, or unmodified: a complete victory; a complete mess. 5. Gram.having all modifying or complementary elements included: The complete subject of “The dappled pony gazed over the fence” is “The dappled pony.” Cf. simple (def. 20).
6. Also,completed.Football.(of a forward pass) caught by a receiver.
7. Logic.(of a set of axioms) such that every true proposition able to be formulated in terms of the basic ideas of a given system is deducible from the set. Cf. incomplete (def. 4b).
8. Engin.noting a determinate truss having the least number of members required to connect the panel points so as to form a system of triangles. Cf. incomplete (def. 3), redundant (def. 5c).
9. (of persons) accomplished; skilled; expert.
10. Math. a. of or pertaining to an algebraic system, as a field with an order relation defined on it, in which every set of elements of the system has a least upper bound.
b. of or pertaining to a set in which every fundamental sequence converges to an element of the set. Cf. fundamental sequence. c. (of a lattice) having the property that every subset has a least upper bound and a greatest lower bound.

—v.t. 1. to make whole or entire: I need three more words to complete the puzzle. 2. to make perfect: His parting look of impotent rage completed my revenge. 3. to bring to an end; finish: Has he completed his new novel yet? 4. to consummate.
5. Football.to execute (a forward pass) successfully: He completed 17 passes in 33 attempts.