Is “Tree” a Scrabble word?

1.Fast growing function based on Kruskal's tree theorem.

1.A perennial woody plant, not exactly defined, but differentiated from a shrub by its larger size (typically over a few meters in height) or growth habit, usually having a single (or few) main axis or trunk unbranched for some distance above the ground and a head of branches and foliage.

“Birds have a nest in a tree in the garden.”

2.Any plant that is reminiscent of the above but not classified as a tree (in any botanical sense).

“the banana tree”

3.An object made from a tree trunk and having multiple hooks or storage platforms.

“He had the choice of buying a scratching post or a cat tree.”

1.To chase (an animal or person) up a tree.

“The dog treed the cat.”

2.To place in a tree.

“Black bears can tree their cubs for protection, but grizzly bears cannot.”

3.To place upon a tree; to fit with a tree; to stretch upon a tree.

“to tree a boot”