He visited the ruined chapel once and again during his travels, drawn to its silent beauty.

She remembered him, once and away, as if through a half-forgotten dream.

Not even once— I wouldn't touch that fad with a ten-foot pole.

She wrote once at a time in her notes by mistake.

After tasting the soup, he asked the chef to adjust the seasoning once more.

Before handing it in, I gave the proposal a once over to catch any typos.

Before handing the project to the client, she gave the report a couple of once overs to catch any typos.

She, once again, opened the letter and tried to make sense of the words.

She calls her parents once and awhile to check on them.

He calls his old friend once in a way to catch up.