Work. The word " work " is more general than " job ".

" Job " is a specific occupation or profession, but " work " refers to general efforts and activities done to accomplish a goal.

Work can be done both inside an official job, and outside a job.

You can say you work at or for a company. For example, " I work at Espresso English."

You can say you 're working on a project or a task. For example, " I 'm working on a market analysis."

Or, " I 'm working on improving customer satisfaction."

You can say you work with people or objects. " I work with special needs children."

Or, " I work with hazardous chemicals."

Here are some other collocations with the word " work ". We say, " I start work at 7 : 00 a.m. " Not, " I start my job at 7 : 00 a.m. "

And, at the end of the day, " I finish work or leave work at 4 : 30."

An informal way to say " leave work " is " get off work ". " I get off work at 4 : 30."

We also say, " Go to work." " We go to work by car." " I went to the bar with some friends from work."

" I can't access Facebook while I'm at work."

Again, we say, " at work " and not, " at my job ".

" Work " is an uncountable noun, so it cannot be plural. " I have three work s to do this week " is incorrect.

The correct sentence is, " I have three projects or three things or three tasks to do this week ".