no worries
No worries (phrase) means That is fine; a relaxed reply used to accept thanks, wave off an apology or reassure someone. Example: “Sorry I'm late." "No worries, we've only just sat down.”
How to use no worries
Learner’s notesIn plain EnglishA friendly way of saying 'that's fine, don't stress about it'.
Informal and friendly; fine in speech and casual writing.
Fill the gap
Can you complete this real example?
"Sorry I'm late." "_____, we've only just sat down."
Etymology
An Australian English phrase that spread to British and American use in the late twentieth century.