(imperative) Take special note; used to add an aside or warning to a text.

Any indication similar in nature to nota bene. / Something deserving of close attention or of careful notice.

(emphatic) Not in the least.

(idiomatic) Used similarly to you're welcome, as a conventional reply to an expression of gratitude. / (idiomatic) Don't worry about it (response to worry or an apology)

None at all.

(idiomatic, chiefly UK) not on your life, an emphatic form of no.

Any of the flowering plants of the genus Myosotis, mostly with a small five-petalled blue flower. / A light tint of blue, the color of the flower.

(idiomatic) Usually; more than half the time; more likely to be the case than not to be the case.

Unfortunately, no; I regret that that is not so.

(idiomatic, colloquial, US) No longer in quiet and comfortable surroundings