stand sentinel

English

Verb

stand sentinel

1. To keep watch. (of soldiers)
2. (figurative, by extension) To be in line like soldiers.

Further reading

• “stand sentinel”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “stand sentinel”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.