| impugn(verb, challenge, deny, doubt, question) |
| investigate(search, explore) |
| journey(search, investigate, explore) |
| knock around(verb, informal, speak) |
| mention |
| negate(verb, challenge, deny, doubt, question) |
| open up(expression, search, investigate, explore) |
| pass through(expression, search, investigate, explore) |
| provided for(expression, favor, see, regard) |
| quarrel(verb, challenge, deny, doubt, question) |
| query(verb, challenge, question, contest, impugn) |
| quibble(verb, challenge, deny, doubt, question) |
| stop in(expression, search, investigate, explore) |
| take on(verb, expression, phrasal verb, challenge, deny) |
| take seriously(verb, expression, favor, see, regard) |
| think through(verb, expression, study, deliberate, contemplate) |
| thrash over(verb, phrasal verb, speak) |
| thrash over(verb, phrasal verb, speak) |
| thresh over(verb, phrasal verb, speak) |
| thresh over(verb, phrasal verb, speak) |