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Is ISONIAZIDS a valid Scrabble word?

Yes, ISONIAZIDS is a valid word in US Scrabble and UK Scrabble, worth 20 points.

Base score before bonus squares; blank tiles score zero.

What does ISONIAZIDS mean?

Isoniazids is a form of ISONIAZID.

  1. noun

    antibacterial drug (trade name Nydrazid) used to treat tuberculosis

Definitions from WordNet 3.1, Princeton University.

Points

Scrabble
20
Words With Friends
21
Letters
10

I (1) + S (1) + O (1) + N (1) + I (1) + A (1) + Z (10) + I (1) + D (2) + S (1) = 20 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 ISONIAZIDS

ISONIAZIDS 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.

Words you can make from ISONIAZIDS

The 60 highest-scoring words using these letters.

Study ISONIAZIDS and related words

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