simple past tense and past participle of concern

Third-person singular simple present indicative form of concern

plural of concern

(obsolete, rare) Relevance.

(obsolete) concerned; having involvement or responsibility

plural of concerning

plural of concern troll

(Internet slang) Someone who posts to an internet forum or newsgroup, claiming to share its goals while deliberately working against those goals, typically, by claiming "concern" about group plans to engage in productive activity, urging members instead to attempt some activity that would damage the group's credibility, or alternatively to give up on group projects entirely.

(transitive, intransitive) To troll as a concern troll would.

plural of going concern