1. stay behind - Noun
2. stay behind - Verb
stay behind (plural stay behinds)
Alternative form of stay-behind
Used other than figuratively or idiomatically: see stay, behind.
(idiomatic) To remain where one is, whilst others leave.
To remain in a classroom or school at the end of teaching, especially to receive punishment.
One who remains when expected to leave or after others have left.
(military) An agent who lives in a foreign country, and can be activated in certain circumstances.
Source: en.wiktionary.orgstay-behind
They who go Feel not the pain of parting; it is they Who stay behind that suffer. Henry Wadsworth Longfellow
Some people are directors and I think they should stay behind the camera. Matthew Vaughn
There's nothing to gain when there's nothing to be lost. There's nothing to gain if you stay behind and count the cost. Make the decision that you can be who you can be, You can be. Tasting the fruit come to the Liberty Tree. Peter Gabriel
If history has a habit of repeating itself, doesn't someone have to stay behind to shout out a warning? Jodi Picoult
The sun won't stay behind the cloud. Armenian Proverb
Those who don't look forward, stay behind. Basque Proverb