Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb sneak_in

2 senses of sneak in

Sense 1
sneak in, creep in -- (enter surreptitiously; "He sneaked in under cover of darkness"; "In this essay, the author's personal feelings creep in")
       => penetrate, perforate -- (pass into or through, often by overcoming resistance; "The bullet penetrated her chest")

Sense 2
slip in, stick in, sneak in, insert -- (insert casually; "She slipped in a reference to her own work")
       => add, append, supply -- (state or say further; "`It doesn't matter,' he supplied")