to exert oneself to do or effect something; make an effort; strive

We must constantly endeavor if we are to succeed.

to attempt; try

He endeavors to keep things neat in his apartment.

Archaic . to attempt to achieve or gain.

a strenuous effort; attempt.

noun

idleness , laziness

verb

be idle , ignore , laze , procrastinate , put off

noun

aim , all * , best shot * , crash project , dry run * , effort , enterprise , essay , exertion , fling , full blast * , full court press , full steam , go , header , labor , lick * , old college try * , one’s all , one’s level best , push , shot * , stab * , striving , struggle , toil , travail , trial , try , try-on , undertaking , venture , whack * , whirl * , worknotes:an endeavor is a purposeful or industrious undertaking that requires effort; try is an attempt or effort , crack , offer , stab , pain , strain , trouble , while , conatus , experiment , nisus , speculation

verb

address , aim , apply , aspire , assay , bid for , buck , determine , dig , do one’s best , drive at , essay , go for * , go for broke , grind , hammer away , hassle , have a crack , have a shot at , have a swing at , hump * , hustle , intend , labor , make an effort , make a run at , offer , peg away , plug , pour it on , purpose , push , risk , scratch , seek , strain , strive , struggle , sweat , take on , take pains , try , undertake , venturenotes:an endeavor is a purposeful or industrious undertaking that requires effort; try is an attempt or effort , affair , attempt , business , effort , enterprise , exert , exertion , fling , job , pursuit , strife , study , undertaking , venture , vocation , work