interpose

(v) be or come between
- An interposing thicket blocked their way
(v) introduce
- God interposed death
(v) to insert between other elements
- She interjected clever remarks
interject, throw in, come in, inject, put in,
(v) get involved, so as to alter or hinder an action, or through force or threat of force
- Why did the U.S. not intervene earlier in WW II?
intervene, step in, interfere,

interject throw in come in inject put in intervene step in interfere

Interpol