Ps.

abbr. (pl. Pss.) Psalm, Psalms (Old Testament).

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Psalm; Psalms.

Also, Psa.

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abbrev

1. Psalm or Psalms (also Psa.)

2. (the Book of) Psalms (Bible)

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ps.,

pieces.

p.s.,

postscript (Latin, post scriptum).

Ps.,

1. Psalm.

2. Psalms (a book of the Bible).

PS (no periods),

proton synchrotron.

P.S.,

an abbreviation for the following:

1. passenger steamer.

2. permanent secretary.

3. postscript (Latin, post scriptum).

4. private secretary.

5. Privy Seal.

6. Theater. prompt side.

7. Public School.

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(pl.Pss.) abbr. Bible Psalm or Psalms