pine·ap·ple 
(pīnăp′əl)
(pīnăp′əl)n.
1.
a. A tropical American plant (Ananas comosus) having large swordlike leaves and a large, fleshy, edible, multiple fruit with a terminal tuft of leaves.
b. The fruit of this plant.
2. Slang A hand grenade.
[Middle English pinappel, pine cone : pine, pine; see PINE1 + appel, apple; see APPLE.]
pineappleAnanas comosus
- one-man
- on end
- oneness
- one-night stand
- one-note
- one-off
- one of these days
- one of those days
- one-on-one
- one-piece
- onerous
- onerously
- onerousness
- oneself
- one-shot
- one-sided
- one-sidedly
- one-sidedness
- Onesies
- one-size-fits-all
- (one's) level best
- one's level best
- (one's) lips are sealed
- one's lips are sealed
- (one's) own man