To stay behind while others withdraw; to be left after others have been removed or destroyed; to be left after a number or quantity has been subtracted or cut off; to be left as not included or comprised.

To continue unchanged in place, form, or condition, or undiminished in quantity; to abide; to stay; to endure; to last.

“There was no food in the house, so I had to remain hungry.”

To await; to be left to.

An act or occurrence by which someone or something remains

Remnant.

Which remains, especially after something else has been removed.

“May I have the only remaining cake?”