General sense of withdrawing from daily life for rest, reflection, or escape. Often used in wellness, travel, or personal development contexts.
I got away from my busy daily life and enjoyed a retreat in the mountains.
religious retreat; spiritual retreat
Specifically a period of withdrawal for prayer, meditation, or religious reflection. Common in Christian and Buddhist contexts.
Military term for pulling back forces from combat or a position. Less common in everyday Japanese than the general sense.
I joined the church retreat and had quiet time for prayer.
A report came in that the enemy's retreat had begun.