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Is SIMPLEXES a valid Scrabble word?

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

Base score before bonus squares; blank tiles score zero.

What does SIMPLEXES mean?

Simplexes is a form of SIMPLEX.

  1. adjective

    allowing communication in only one direction at a time, or in telegraphy allowing only one message over a line at a time

    “simplex system”

  2. adjective

    having only one part or element

    “a simplex word has no affixes and is not part of a compound--like `boy' compared with `boyish' or `house' compared with `houseboat'”

Definitions from WordNet 3.1, Princeton University.

Points

Scrabble
20
Words With Friends
23
Letters
9

S (1) + I (1) + M (3) + P (3) + L (1) + E (1) + X (8) + E (1) + 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 SIMPLEXES

SIMPLEXES 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 SIMPLEXES

The 60 highest-scoring words using these letters.

Study SIMPLEXES and related words

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