|Origin:||'older', from senex 'old'|
having a higher position, level, or rank [↪ junior]:
the senior Democrat on the House committee
White men hold most of the jobs in senior management.
the senior partner in a law firm
He is also a diplomat, but senior to me.
2 [only before noun] British English
a senior competition is for older people or for people at a more advanced level:
I won the 60 metre race, my first senior success.