“Full of beans” means lively and energetic. Here is the modern meaning, a likely origin, and a few natural example sentences.

Graceful usually means elegant in movement or style. Gracious means kind, courteous, and warm toward other people.

Biweekly can mean every two weeks or twice a week. Context usually clarifies it, but a clearer phrase is often better.

Choir looks unusual because English spelling often preserves word history. Sound changes and borrowed spellings pull writing away from speech.