(quantum mechanics) a potential well that confines particles in one dimension, forcing them to occupy a planar region

(idiomatic) An expression of mild disappointment or resignation; too bad, it's a pity.

Almost, nearly.

A well whose water is supplied by a hot spring.

Noble; born into the upper classes.

Of a person's development or education, having a balanced variety of attributes. / Of a person's body shape, being plump, shapely or curvaceous.

Of a book, etc.: showing signs of frequent or heavy use; worn; well used.

Highly esteemed; well regarded.

With good intentions, often used to reflect positively on a negative outcome or situation.

Eloquent and able with regards to speech.