guard
A person who, or thing that, protects or watches over something.
Example
“The prison guard unlocked the door of the cell. After completing the repairs, he replaced the sump guard.”
Other meanings
A squad responsible for protecting something.
“The president inspected the guard of honour.”
An elite military unit in Russia, the former Soviet Union and several post-Soviet countries.
Example sentences
Word history
From Old French "guarde" (a guardian, warden, keeper).
Where this comes from
This definition is adapted from “guard” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.