Third-person singular simple present indicative form of act upon

simple past tense and past participle of act upon

present participle of act upon

A small wader, Bartramia longicauda, breeding in North America and wintering in South America.

plural of upper respiratory tract

plural of stiff upper lip

simple past tense and past participle of call upon

present participle of call upon

Third-person singular simple present indicative form of call upon

The full name of Richmond in south-west London, England, also known as Richmond on Thames. / A London borough of Greater London.