is it

Interjection

 * - It's ten o'clock already.
 * - Is it?
 * 1)  really? is that so?
 * - I'm feeling tired.
 * - Is it?
 * 1) * 2007, Dan le Sac vs. Scroobius Pip, "Thou Shalt Always Kill" on Angles
 * Thou shalt not express your shock at the fact that Sharon got off with Brad at the club last night by saying "is it?"
 * Thou shalt not express your shock at the fact that Sharon got off with Brad at the club last night by saying "is it?"

Usage notes
In contrast to the neutral, questions formed with is it expect an affirmative response.