bound

Obliged (to).

You are not legally bound to reply.

Then I had a good think on the subject of the hocussing of Cigarette, and I was reluctantly bound to admit that once again the man in the corner had found the only possible solution to the mystery.

That cannot stand alone as a free word.

Constrained by a quantifier.

Constipated; costive.

Confined or restricted to a certain place.

railbound

Ready, prepared.

This certain,—that a band of war / Has for two days been ready boune, / At prompt command to march from Doune […].

Ready to start or go (to); moving in the direction (of).

Which way are you bound? —I'm already homeward bound.

Is that message bound for me?

Very likely (to), certain to

They were bound to come into conflict eventually.

When you're well enough off so's you don't have to fret about anything but your heft or your diseases you begin to get queer, I suppose. And the queerer the cure for those ailings the bigger the attraction. A place like the Right Livers' Rest was bound to draw freaks, same as molasses draws flies.

A boundary, the border which one must cross in order to enter or leave a territory.

I reached the northern bound of my property, took a deep breath and walked on.

Somewhere within these bounds you may find a buried treasure.

A value which is known to be greater or smaller than a given set of values.