noun a prayer or petition.
2. boon ·noun kind; bountiful; benign.
3. boon ·noun gay; merry; jovial; convivial.
4. boon ·noun good; prosperous; as, boon voyage.
5. boon ·noun that which is asked or granted as a benefit or favor; a gift; a benefaction; a grant; a present.
6. boon ·noun the woody portion flax, which is separated from the fiber as refuse matter by retting, braking, and scutching.