Do unique and square have a long U vowel sound?

Let's break down the vowel sounds in "unique" and "square":

* Unique: The vowel sound in "unique" is a long "u" sound, similar to the "u" in "flute" or "cube".

* Square: The vowel sound in "square" is a short "a" sound, similar to the "a" in "cat" or "hat".

Therefore, only unique has a long "u" vowel sound.