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Is OPSONINS a valid Scrabble word?

Yes, OPSONINS is a valid word in US Scrabble and UK Scrabble, worth 10 points.

Base score before bonus squares; blank tiles score zero.

What does OPSONINS mean?

Opsonins is a form of OPSONIN.

  1. noun

    an antibody in blood serum that attaches to invading microorganisms and other antigens to make them more susceptible to the action of phagocytes

Definitions from WordNet 3.1, Princeton University.

Points

10

Scrabble

13

Words With Friends

8

Letters

O (1) + P (3) + S (1) + O (1) + N (1) + I (1) + N (1) + S (1) = 10 points in Scrabble.

Dictionary status

  • Scrabble (US & Canada)Valid
  • Scrabble (UK & worldwide)Valid
  • Words With FriendsListed

Scrabble lists: NWL2023 (US & Canada) and CSW24 (UK & worldwide). WWF uses our ENABLE reference plus verified additions. “Listed” and “Not listed” describe that reference; check acceptance in the game. Sources reviewed 2026-10-03.

Hooks for OPSONINS

OPSONINS has no one-letter front or back hooks in US Scrabble. Adding a single letter to either end does not make another word in that list.

Front hooks0

None — nothing can be added to the front.

Back hooks0

None — nothing can be added to the end.

Anagrams of OPSONINS

Words that use exactly the same letters.

Words you can make from OPSONINS

The 60 highest-scoring words using these letters.

Study OPSONINS and related words

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