RCW 59.12.010: Forcible entry defined.

Every person is guilty of a forcible entry who either—(1) By breaking open windows, doors or other parts of a house, or by fraud, intimidation or stealth, or by any kind of violence or circumstance of terror, enters upon or into any real property; or—(2) Who, after entering peaceably upon real property, turns out by force, threats or menacing conduct the party in actual possession.