(v): to come or go into
(v): come to understand
(v): know and comprehend the nature or meaning of
(v): become clear or enter one's consciousness or emotions
(v): enter a group or organization in order to spy on the members
(v): become part of; become a member of a group or organization
(v): make one's way deeper into or through
(v): move forward, also in the metaphorical sense
(v): insert the penis into the vagina or anus of
(v): put or introduce into something
(v): spread or diffuse through
