| Main Entry: | |
| Part of Speech: | preposition |
| Definition: | in respect of |
| Synonyms: | about, against, as for, as regards, as to, concerning, on the subject of, regarding, respecting, touching, toward, with reference to, with respect to |
| Main Entry: | apropos of |
| Part of Speech: | preposition |
| Definition: | with regard to |
| Synonyms: | apropos, concerning, in connection with, speaking of, with reference to |
| Main Entry: | by the way |
| Part of Speech: | adverb |
| Definition: | in connection with |
| Synonyms: | apart from, as to, aside, by the bye, in as much as, in passing, incidentally, on the part of, parenthetically, relating to, speaking of, while on the subject, with reference to |
| Main Entry: | regarding |
| Part of Speech: | adjective/preposition |
| Definition: | concerning |
| Synonyms: | about, as regards, as to, in regard to, in relation to, respecting, with reference to, with regard to, with respect to |
| Main Entry: | respecting |
| Part of Speech: | adjective |
| Definition: | regarding |
| Synonyms: | about, as to, concerning, in connection with, in respect to, referring to, relating to, with reference to, with regard to |