to reject or refuse to consider an offer, a proposal, etc. or the person who makes it
He has been turned down for ten jobs so far.
The candidate decided to turn down the job offer in favor of pursuing other opportunities.
Politely turning down social invitations is acceptable when personal priorities need attention.
A considerate host will understand if guests need to turn down an invitation due to prior commitments.
Sometimes, it's necessary to turn down additional responsibilities to maintain a healthy work-life balance.