| about(adjective, preposition, relation, touching, apropos) |
| anent(adjective, preposition, relation, touching, apropos) |
| concerning(adjective, preposition, relation, apropos, against) |
| regarding(adjective, preposition, touching, concerning) |
| respecting(adjective, preposition, touching, regarding) |
| with regard to(verb, expression, adjective, idiom, phrasal verb) |
| rhenium |
| with reference to(verb, expression, adjective, idiom, phrasal verb) |
| with respect to(verb, expression, adjective, idiom, phrasal verb) |
| Ra |
| again |
| apropos(adjective, preposition, against, regarding, concerning) |
| as regards(expression, idiom, preposition, relation, touching) |
| as to(verb, expression, phrasal verb, preposition, relation) |
| pertaining to(verb, expression, adjective, phrasal verb, touching) |
| ray |
| relating to(verb, expression, phrasal verb, preposition, relation) |
| afresh |
| anew |
| as for(verb, expression, phrasal verb, preposition, relation) |