| FRO | a member of the House of Commons of Great Britain who is a minister or an ex-minister |
|---|---|
| FRO | an undeveloped field of study |
| FRO | an international boundary or the area (often fortified) immediately inside the boundary |
| FRO | a wilderness at the edge of a settled area of a country |
| FRO | on the American frontier |
| FRO | a settlement on the frontier of civilization |
| FRO | a man who lives on the frontier |
| FRO | a woman who lives on the frontier |
| FRO | front illustration facing the title page of a book |
| FRO | an ornamental facade |
| FRO | an adornment worn on the forehead |
| FRO | preceding all others in spatial position |