Light or bright one
Ilee is often considered a modern variation of the name Eileen or a diminutive of names ending in -ilee. It is frequently associated with the Greek name Helen, meaning torch or shining light, or the English word 'lee' referring to a meadow.
Less common today
Ilee isn't in the latest US Top 1000. It last peaked at #9,396 in 2014.
US births per 5-year period, 1990βpresent (SSA data).