she-ass: the female donkey, a valued animal for riding, breeding, and carrying loads
This word names one animal, the female donkey, and it always means that. Hebrew keeps the female donkey separate from the ordinary or male donkey and from the young colt, and it is the females that turn up again and again as a measure of a person's wealth. Abraham, Jacob, and Job are all credited with herds of she-asses alongside their other livestock, and Jacob sends twenty of them as part of a lavish gift to Esau.
The she-ass was also a mount, and a fairly dignified one. The song of Deborah pictures the well-off riding on white she-asses, and the young Saul spends days crossing the countryside hunting for his father's strays. The most memorable of them is the donkey Balaam rides, the animal that sees the angel her rider cannot and finally speaks to protest his beatings.
Twice the she-ass appears in a poetic pairing with her colt, once in Jacob's blessing of Judah and once in Zechariah's picture of the coming king who arrives humbly on a donkey rather than a war horse. The New Testament takes up that image for Jesus entering Jerusalem, which is why the plain, hardworking donkey carries such weight in these passages.