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Synonyms of secure in English:
secure
See US English definition of secure
See UK English definition of secure
See Spanish definition of seguro
adjective
1‘check to ensure that all nuts and bolts are secure’
loose, unlocked
2‘make sure that the ladder you are working on is secure’
precarious, rocky
3‘jars kept secure in a pantry may survive for several generations’
vulnerable, threatened, unsettled
4‘few young people face a secure future’
uncertain, insecure
verb
1‘pins secure the handle to the main body’
2‘the doors had not been properly secured’
3‘Athens was seeking to secure herself from a lightning invasion from the west’
4‘he killed the engine, then leapt out to secure the boat’
5‘a written constitution would secure the rights of the individual’
6‘the company has already secured two million pounds' worth of business’
lose, let slip