Can You Use Proper Nouns in Wordle?

Wordle maintains a strict word list for valid guesses. Every guess must be a common English word — names, places, organizations, brand names, and other proper nouns will be rejected with the error: "Not in word list."

What Counts as a Proper Noun

Proper nouns include anything that names a specific person, place, or thing:

• People's names — JAMES, SARAH, HENRY
• Cities and countries — LONDON, FRANCE, TOKYO
• Brand names — GOOGLE, NIKE, TESLA
• Days and months — MONDAY, JANUARY
• Acronyms and abbreviations — NASA, FBI

The One Edge Case: Words That Are Also Names

Some words that are normally proper nouns can still be valid guesses if they appear in Wordle's word list as common words. Examples include:

• SWEDEN — no, too specific, rejected
• PRAY — yes, "to pray" is a common verb
• MARCH — yes, also a month but also a verb (to march)
• WITCH — yes, also a type of person but in the common word list

The key test is: if the word appears in Wordle's accepted word list as a common word, it will be accepted regardless of whether it can also function as a proper noun.

Common Mistaken Guesses

These are frequently tried but always rejected:

Why Does Wordle Exclude Proper Nouns?

The main reasons are fairness and consistency. Wordle is a game of deduction — all players compete using the same limited word list. Allowing proper nouns would make the game asymmetric: someone who knows more names would have an unfair advantage.