бое́ц

fairly common #4068B2

nounmasculineanimatecountable

1.
fighter, combatant, warrior
На ринг вы́шел молодо́й бое́ц.
A young fighter stepped into the ring.
Used of anyone who fights: in war, in a boxing/MMA ring, or figuratively for a struggle.
2.
soldier, privatemilitary
В ро́те оста́лось де́сять бойцо́в.
Ten soldiers were left in the company.
Of a rank-and-file serviceman; common in military reports and Soviet-era usage.

Examples

Отпарировавший удар боец сразу пошёл в атаку.
The fighter who had parried the blow immediately went on the attack.
Бойцы́ вы́строились в шере́нгу.
The soldiers fell into rank.
Дневаливший в казарме боец доложил командиру о порядке.
The soldier who had been on duty in the barracks reported to the commander that everything was in order.
Санитар, перебинтовывавший бойца утром, теперь отдыхал.
The medic who rebandaged the soldier in the morning was resting now.
Он стал закалённым бойцом после армии.
He became a toughened fighter after serving in the army.
Обескровливающий удар лишил бойца всех сил.
The debilitating blow left the fighter completely exhausted.
Все бойцы знают друг друга только по позывным.
All the soldiers know one another only by their call signs.
Бойцы окапывались всю ночь под дождём.
The fighters dug in all night in the rain.

⚠️ Stress change.