1 general:: Interrupt one's activity briefly, as in We've been working for two hours; let's take a break. Also see TAKE FIVE.
American Heritage Idioms
2 general:: Phrase(s): take a break [and] take one’s break to have a short rest period in one’s work. • It’s ten o’clock—time to take a break. • I don’t usually take my break until 10:30.
McGrawhill's American Idioms And Phrasal Verbs