• available, current, effective, effectual, good, operative, to apply, to cover, to go, went, gone, to hold good, to hold, held, to operate, to stand, stood, valid
• to make good, to prove, to prove, proved, proven, to validate, to vindicate
• availability, force, validity
• to come into force, to take effect
• validation, vindication
• to apply to sg, to hold true of sg
• demandable, enforceable
• annulment, cancellation, invalidation, recission
• to claim one's due, to vindicate one's rights