Codenames Official Rules [edition not specified], p.[page not specified]
Expertise: Board game rules expert. | Verification: Cross-referenced official rulebook text regarding valid clues and number usage. | Purpose: Resolve the #1 confusion regarding non-standard word clues in Codenames.
Key Insight: To avoid arguments, establish whether your group allows abbreviations and numbers before the first clue is given.
These rules correspond to the UK edition of Codenames.
According to the Codenames Official Rulebook, clues are not limited to standard vocabulary. Letters and numbers are valid clues provided they refer to specific meanings. For example, a spymaster can use 'x: 1' to refer to RAY, or 'eight: 2' to link BALL and OCTOPUS. Additionally, players can use '0' as a number part of a clue (e.g., 'feathers: 0') to indicate that none of the team's words relate to that clue, which allows for unlimited guesses from…
Example Play Situation
Alice is the spymaster and sees that NUT and BARK are on the board. She gives the clue 'tree: 2'. Bob, an operative, touches the NUT card, and then touches the BARK card to confirm the second word.
House Rules
[HOUSE RULE] Some groups may choose to prohibit the use of numbers or letters as clues to increase the difficulty, or they may allow common abbreviations like 'UK' or 'PhD' which the official rules suggest players can decide on.
Common Misconceptions
Clues must only be standard dictionary words
The number part of a clue must always be 1 or higher
Spymasters cannot use numbers as the clue itself
Quick Reference
You Can
You Cannot
Use numbers to indicate how many words relate to a clue
Use any word that is currently visible on the table
Use '0' to tell operatives to avoid a specific word
Use melodies or accents as a clue
Use 'unlimited' to allow continuous correct guesses
Give extra hints like 'this is a stretch'
Spell out your clue if an operative asks
Frequently Asked Questions
What is the official rule for using numbers as clues in Codenames?
Numbers are valid as long as they indicate how many words relate to the clue, or as a '0' to avoid a word.
Can I use a letter like 'x' as my clue?
Yes, letters are valid clues if they refer to meanings, such as using 'x: 1' for the word RAY.
Is it allowed to say 'unlimited' instead of a number?
Yes, saying 'unlimited' allows operatives to keep guessing as long as they are correct.
What happens if I use a '0' clue?
A '0' clue means operatives should not guess the word related to that clue, and they get unlimited guesses.
