The term 'expire' is used to describe the END of something, such as a contract or a period of time. The crossword solutions for this term include 'DWINDLE' (7 letters), which means to gradually become smaller or weaker; 'CONCLUDE' (8 letters), which means to bring something to an END; 'EMIT' (4 letters), which means to send out; 'CROAK' (5 letters), which means to make a deep sound like a frog; 'FINISH' (6 letters), which means to come to an END; 'CLOSE' (5 letters), which means to shut; 'BREATHE' (7 letters), which means to take in and let out air; 'EXHALE' (6 letters), which means to BREATHE out; 'DEPART' (6 letters), which means to leave; 'TERMINATE' (9 letters), which means to bring something to an END; 'GO' (2 letters), which means to move away; 'DISAPPEAR' (9 letters), which means to vanish; 'CONK' (4 letters), which means to stop working; 'CEASE' (5 letters), which means to stop; 'ELAPSE' (6 letters), which means to pass by; 'DECEASE' (7 letters), which means to DIE; 'END' (3 letters), which means to FINISH; 'PERISH' (6 letters), which means to DIE; 'LAPSE' (5 letters), which means to pass away; 'DIE' (3 letters), which means to CEASE living; 'passon' (6 letters), which means to DIE; 'runout' (6 letters), which means to come to an END; and 'passaway' (8 letters), which means to DIE. All of these words describe the concept of something coming to an END, which is the definition of the term 'expire'.