条約【じょうやく】
treaty, pact, convention, agreement
契約【けいやく】
contract, compact, agreement
約束【やくそく】
promise, agreement, arrangement, one's word, contract, pact, appointment, engagement, date, convention, rule, destiny, fate
公約【こうやく】
public commitment, public promise, campaign pledge, official vow
予約【よやく】
reservation, appointment, booking, advance order, contract, subscription, pledge, programming (e.g. a device), setting (e.g. a timer)
制約【せいやく】
limitation, restriction, condition, constraints
婚約【こんやく】
engagement, betrothal
解約【かいやく】
cancellation of a contract
節約【せつやく】
economising, saving
誓約【せいやく】
oath, vow, pledge, covenant
盟約【めいやく】
oath, pledge, pact, covenant, alliance
要約【ようやく】
summary, digest
旧約【きゅうやく】
old promise, old agreement, old covenant, Old Testament
約款【やっかん】
agreement, stipulation, article, clause
倹約【けんやく】
thrift, economy, frugality