1. interpose

be or come between

Example Sentences:
'An interposing thicket blocked their way'

2. interpose

introduce

Example Sentences:
'God interposed death'

3. come in, inject, interject, interpose, put in, throw in

to insert between other elements

Example Sentences:
'She interjected clever remarks'

• come in
• inject
• interject
• put in
• throw in

4. interfere, interpose, intervene, step in

get involved, so as to alter or hinder an action, or through force or threat of force

Example Sentences:
'Why did the U.S. not intervene earlier in WW II?'

• interfere
• intervene
• step in