17 Synonyms for X: frontier, puzzle

x (17 synonym found)

X has 17 synonyms. The top synonyms for x are frontier, puzzle, terra incognita, dark horse, sealed book, the incalculable, the unfamiliar, the unknowable and 9 more. Another word for x is frontier. Browse the full list below.

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frontiers of knowledge

frontier

dark horse

Frequently asked questions

What is a synonym for x?

A common synonym for x is frontier. Other synonyms include puzzle, terra incognita, dark horse, sealed book.

How many synonyms does x have?

X has 17 synonyms listed on Thesaurasize.

What does x mean?

(n): the 24th letter of the Roman alphabet

Definition of x:

(n) : the 24th letter of the Roman alphabet

History
This word has been
viewed 6,358 times.

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