条約【じょうやく】
treaty, pact, convention, agreement
契約【けいやく】
contract, compact, agreement
公約【こうやく】
public commitment, public promise, campaign pledge, official vow
約束【やくそく】
promise, agreement, arrangement, one's word, contract, pact, appointment, engagement, date, convention, rule, destiny, fate
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
節約【せつやく】
economising, saving
解約【かいやく】
cancellation of a contract
誓約【せいやく】
oath, vow, pledge, covenant
要約【ようやく】
summary, digest
盟約【めいやく】
oath, pledge, pact, covenant, alliance
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