n. 25B6; noun
you broke your promise : WORD (OF HONOUR), assurance, pledge, vow, guarantee, oath, bond, undertaking, agreement, commitment, contract, convenant.
he shows promise : POTENTIAL, ability, aptitude, capability, capacity.
a promise of fine weather : INDICATION, hint, suggestion, sign.
25B6; verb
she promised to go : GIVE ONE'S WORD, swear, pledge, vow, undertake, guarantee, contract, engage, give an assurance, commit oneself, bind oneself, swear/take an oath, covenant; archaic plight.
the skies promised sunshine : INDICATE, lead one to expect, point to, denote, signify, be a sign of, be evidence of, give hope of, bespeak, presage, augur, herald, bode, portend; poetic/literary betoken, foretoken, forebode.