advanced

Vocabulary: O

10 words starting with O at the advanced level

To keep from being seen; conceal.

No longer produced or used; out of date.

Noisy and difficult to control.

Hopeful and confident about the future.

Ostentatiously rich and luxurious or lavish.

With no special or distinctive features; normal.

To move or swing back and forth at a regular speed; to waver between extremes of opinion, action, or quality.

Old-fashioned.

To move faster than and overtake (someone else).

To appear much more prominent or important than.