Synonyms: stick in, insert, sneak in, slip in
Definition: insert casually
Usage: She slipped in a reference to her own work
Similar words: append, add, supply
Definition: state or say further
Usage: `It doesn't matter,' he supplied
Definition: enter surreptitiously
Usage: He sneaked in under cover of darkness; In this essay, the author's personal feelings creep in
Similar words: penetrate, perforate
Definition: pass into or through, often by overcoming resistance
Usage: The bullet penetrated her chest