(euphemistic) To urinate or defecate.

Being burned by fire. / (idiomatic) Achieving good results at a rapid rate. / (idiomatic) Sexually aroused.

To illuminate; to make clear.

ontogenesis

Alone in a category. / Singularly superior; the best. / Without sibling; without a sibling of the same gender. / (obsolete) Mere.

Without others or anything further; exclusively. / No more than; just. / As recently as. / (Britain) Used to express surprise or consternation at an action.

(informal) Under the condition that; but. / But; except.

An only child.

(transitive, idiomatic) To attend to (someone's) every need, to the point of excess.

To provide a service to (someone); to act as a servant to (someone); to serve (someone) as a waiter or waitress in a restaurant. / (colloquial) To wait for (a person).