To come forward and join in what is going on; to come to close quarters, enter the fray; to intervene in an affair, a dispute, etc. literal and figur…

to go (etc.) between the bark and the tree.

intransitive. To go in towards a particular point; to intervene in an action; to join in a fray; †to interpose in a conversation (obsolete). Now reg…

To come in among others in the way of action; to interfere, interpose. Obsolete.

To put oneself forward or interfere in a matter; to step in between persons at variance or in a person's behalf; to intervene. intransitive.

intransitive. To intervene; to interrupt. Now U.S. regional.

Of a person, party, or state: To come between in action; to interfere, interpose; also, to act as intermediary; †to take a share in (obsolete).

To interpose actively in an affair, a contention, quarrel, etc.

to wade in: to make a vigorous or concerted attack on one's opponent; to intervene, esp. vocally; to wade into (colloquial, originally U.S.): to…