An international organization of Arabic-speaking countries.

A peninsula between the Red Sea and the Persian Gulf; includes Jordan, Saudi Arabia, Yemen, Oman, Qatar, Bahrain, Kuwait, and the United Arab Emirates.

(geometry) A continuous section of the circumference of a circle.

A place where many varieties of tree are grown for research, educational, and ornamental purposes.

Related to Arabia.

A native of Arabia. / An Arabian horse.

A black-and-white species of moth, Lymantria monacha.

Alternative spelling of archenemy

(publishing) Acronym of advance reader's copy, a copy of a book given to a reviewer free in advance for review purposes. / (pathology) Initialism of AIDS-related complex.

Initialism of American Red Cross.