verb
1.
Synonyms: try 5, assay, attempt, endeavor, essay, offer, seek, strive, struggle
Related Word: begin, commence, start
Idioms: put ( or set) one's hand to
2.
Synonyms: take on 3, take up
3.
Synonyms: promise 1, engage, pass, pledge
Related Word: certify, warrant
Idioms: stand back of ( or behind)