It is not important; do not fret; used to reassure or comfort the person to whom it is said.
Did you fall over and hurt your knee? Never mind, I’ll put a bandage on it.
Do not be concerned (about someone or something, or about doing something).
Here’s some money for you. Never mind about paying me back; you can keep it.
Indicates a withdrawal of a previous statement.
Can you hand me that screwdriver? Wait, never mind, give me the fire extinguisher instead.
Let alone; much less.
They wouldn't go near that place, never mind spending an entire day there.
Attention, heed.
Concern, affair.
Consequence; significant change in or effect on a situation or state; difference.