Lord's Supper and Passover supper

Lord's Supper noun - The traditional Passover supper of Jesus with his disciples on the eve of his crucifixion.

Passover supper and Lord's Supper are semantically related. In some cases you can use "Passover supper" instead a noun phrase "Lord's Supper".

Passover supper noun - (Judaism) the ceremonial dinner on the first night (or both nights) of Passover.

Lord's Supper and Passover supper are semantically related. Sometimes you can replace phrase "Lord's Supper" with "Passover supper", this phrases are similar.