キュウプレックス

'kyu' is the English romanization of a common Japanese bi-syllable, きゅ
This sound can have many meanings and Kanji associated with it, depending on the context.
My particular favorite is きゅうき pronouced /kyu:ki/ (IPA)
吸気
The first character can mean 'to inhale; to sip'
The second 'mind; mood; spirit'
And together the meaning becomes: inspiration