WORK

work
wəːk/
noun

1.
activity involving mental or physical effort done in order to achieve a result.
“he was tired after a day’s work in the fields”
synonyms:
labour, toil, exertion, effort, slog, drudgery, the sweat of one’s brow; industry; 
service; informalgrind, sweat, donkey work, spadework, elbow grease; informalgraft, fag;
informalyakka; archaictravail, moil
“he was tired after a day’s work in the fields”

2.
a task or tasks to be undertaken.
“they made sure the work was progressing smoothly”
synonyms: tasks, jobs, duties, assignments, commissions, projects; chores
“haven’t you got any work to do?”

verb

1.
be engaged in physical or mental activity in order to achieve a result; do work.
“an engineer who was working on a design for a more efficient wing”
synonyms: toil, labour, exert oneself, slave (away), plod away; work one’s fingers to the bone, work like a Trojan/dog, work day and night, keep at it, keep one’s nose to the grindstone; 
informalslog (away), beaver away, plug away, peg away, put one’s back into something, work one’s guts out, work one’s socks off, knock oneself out, sweat blood, kill oneself; informalgraft, fag; informalbullock; vulgar slangwork one’s balls/arse off; vulgar slangwork one’s ass/butt off; archaicdrudge, travail, moil “staff worked late into the night to make the necessary repairs”

2. (of a machine or system) function, especially properly or effectively.
“his phone doesn’t work unless he goes to a high point”
synonyms: function, go, run, operate, perform; be in working order; 
informalbehave
“Dino’s car was now working perfectly”