Main Entry: ²open

Function: verb

Inflected Form(s): opened; open·ing

transitive verb

1 a : to make available for entry or passage by removing (as a cover) or clearing away (as an obstruction) b : to free (a body passage) of congestion or occlusion <an inhalator for opening congested nasal passages> <open clogged arteries>
2 : to make one or more openings in <opened the boil>

intransitive verb

: to spread out <the wound opened>