Once

All art is at once surface and symbol.

all at once

apologizing once more

As far as I’m concerned you can leave at once

But once approached, he joined in just like almost all the interviewees

Christmas comes but once a year

Come at once!

Cowards die many times before their deaths the valiant never taste of death but once.

Fool me once, shame on you, fool me twice, shame on me!

For women are as roses, whose fair flower, Being once display’d, doth fall that very hour.

Get ready at once!

High hopes were once formed of democracy but democracy means simply the bludgeoning of the people by the people for the people.

I can’t be in two places at once

I’ll do it, but just this once, mind you!

I’ll see to it at once