wo /wo/exclamation 2noun 1verb 1forms 1 exclamation2 •A call to cause a horse to slow down or stop; whoa. •A falconer's call to a hawk. noun1 •(dialect, Northern-England) A wall.He stands ahint our wo. — 1859 verb1 •(dialect, no longer used) To wall (to build a wall, or build a wall around).It's a varra lang while—a caant tell ya hoo lang—sen it wes bilt, lang afooar Borradal fooak woet kucku in, er t' first cooach ran throo Dent, […] — 1880 formswos