Never mind means do not trouble yourself about it. Never mind, it does not matter, oh never mind.
It waves away either an apology or a question, depending on the tone. Said flatly at the end of a failed explanation it means the speaker has given up rather than forgiven anybody.
1phrasenever mindDo not trouble yourself about it.
“Never mind the mess, come in.”
never mind is a phrase.
Practised in Small Talk & Everyday Phrases