soldier
nounUK /ˈsəʊldʒə/
US /ˈsoʊldʒər/
A soldier is a person who is in the army and helps keep people safe.
The soldier marched proudly with his unit.
OTHER MEANINGS
2. A person who works hard for a cause.
She is a soldier for the environment.
3. A low-ranking member of an army.
He served as a soldier for five years.
4. To keep going through something difficult.
They soldiered on despite the rain.