to start doing / to begin

a job; an occupation; work / job, work (task) / (physics) work, change of energy

to work

schedule, program, timetable

the first sight of something / something seen for the first time

one should start a big project with immediate, practical steps; start small / the person who proposes something should be the first one to take practical steps to implement it

work clothes

work (place where one is employed), workplace

(physics) power

task; (doing a) bit of work / difficult task; hard work