a fawn: the young of a deer or a gazelle, named for its age rather than its species
This word names a stage of life, not a kind of animal. On its own it says only "the young one"; the word standing beside it says which animal is meant. Three times the poem speaks of the fawn of the harts (אַיָּל), and twice of fawns that are twins of a gazelle (צְבִיָּה). One word, two different animals.
It is a rare and deliberately poetic choice. All five appearances sit inside the Song of Songs, and the word turns up nowhere else in the Hebrew Bible, nor in the Dead Sea Scrolls, nor in the early rabbinic rules about animals, which keep to the adult names for deer and gazelle. A love poem reaches for it the way English poetry reaches for a word ordinary speech would not bother with.
Inside the Song it does two jobs:
- three times it pictures the man in motion, bounding over the hills with the speed and freedom of a young animal (Song of Songs 2:9, 2:17, 8:14)
- twice, in the plural, it pictures the woman's breasts as two matched fawns grazing among lilies (Song of Songs 4:5, 7:3)
The three verses about the man also frame the whole book: the phrase that brings him leaping over the hills near the beginning is the same phrase that sends him away over the spice mountains in the closing line.
The second picture is not a claim about what fawns look like. Ancient love poetry, in Israel and in Egypt alike, used young animals to say tenderness, matched grace, and a shy, untamed aliveness, and the first readers would have heard the comparison that way rather than as a description of shape.