A chapel — a small church or room/building used for Christian worship (commonly read as れいはいどう).
結婚式は教会の礼拝堂で行われた。
The wedding was held in the chapel of the church.
大学のキャンパス内に小さな礼拝堂がある。
There is a small chapel on the university campus.
A building used for worship in front of the main hall of a Buddhist temple; in this religious/temple context it is often read らいはいどう.
寺の境内にある礼拝堂（らいはいどう）で読経が行われた。
A sutra chanting was held in the temple's worship hall (raihaidō) in the precincts.
参拝者は本堂に向かう前に、礼拝堂で手を合わせた。
Worshippers clasped their hands in the chapel before heading to the main hall.