intercalate

introduce, insert, insinuate, interpolate, intercalate, interpose, interject mean to put between or among others. introduce is a general term for bringing or placing a thing or person into a group or body already in existence.

• • introduced a new topic into the conversation

insert implies putting into a fixed or open space between or among.

• • inserted a clause in the contract

insinuate implies introducing gradually or by gentle pressure.

• • insinuated himself into the group

interpolate applies to the inserting of something extraneous or spurious.

• • interpolated her own comments into the report

intercalate suggests an intrusive inserting of something in an existing series or sequence.

• • new chapters intercalated with the old

interpose suggests inserting an obstruction or cause of delay.

• • interpose barriers to communication

interject implies an abrupt or forced introduction.

• • interjected a question