A request for clarification of what the listener just said.

A request for clarification of an anterior statement or question. / An expression of surprise, annoyance, or disagreement to an anterior statement.

present participle of live beyond one's means

Third-person singular simple present indicative form of live beyond one's means

simple past tense and past participle of live beyond one's means

(informal, idiomatic) Indicating that one is serious and not joking about a matter.

(physics) The root mean square of the velocities of all the molecules in a volume of gas; directly proportional to its temperature in the case of an ideal gas.

(idiomatic) Have a lifestyle where one's spending regularly exceeds one's income.

plural of brake mean effective pressure

plural of mean distance between failure