no problem exclamation 3noun 1 exclamation3 •No thanks are necessary; you're welcome (said in response to an expression of gratitude).Thank you. — No problem. •No apology is necessary; think nothing of it (said in response to an expression of regret).I'm sorry. — No problem. •Certainly, sure (said when granting a request).Porter, can you help me with my bags? — No problem, sir. noun1 •Something easy, not difficult, not posing problems.Finding this house should be no problem if we use a good map.