invasion, incursion.

assault, v. attack, assail.

assaulter, n. assailant.

assay, n. Associated Words: docimology, docimacy, docimastic.

assemble, v. convene, congregate, gather, meet; muster, convoke.

assembly, n. concourse, congregation, assemblage, meeting;
convention, convocation, congress, synod, diet, council, caucus,
consistory, conclave, conventicle, conference; galaxy.

assent, n. consent, agreement, acquiescence, concurrence; placet.
Antonyms: dissent, declension.

assent, v. concur, acquiesce, concede, yield, consent. Antonyms:
dissent, refuse.

assert, v. affirm, state, say, aver, predicate, asseverate, maintain,
declare.

assertion, n. affirmation, statement, declaration, averment

assertive, a. positive, peremptory, declaratory, affirmative

assets, n. pl. resources, property, effects, possessions.

assiduity, n. sedulity, diligence, sedulousness, perseverance