People had a valid excuse not to go to work.

If a player misses a meeting without a valid excuse, that's $1,000.

It is a valid excuse to lean forward in your seat.

I don't think the fact that in this particular instance the friend had a valid excuse makes any difference.

He's not Police; there was no valid excuse to bring him on my fake mission.

Those with valid excuses for not being in school will be exempt.

He hurried from the room as if glad to have a valid excuse to leave.

There were equally valid excuses for most of the other destruction.

It was not a valid excuse to say, "To save the team and the hostages."

She would have no valid excuse against the welcoming or the ball.