thorough
1. thor.ough \'th*r-(.)o-, -*(-w); 'th*-(.)ro-, -r*(-w)\ pp [ME thorow, fr. OE thurh, thuruh, prep. & adv.] archaic : THROUGH 2. thorough av archaic : THROUGH 3. thorough aj 1: carried through to completion : EXHAUSTIVE {~ search} 2a: marked by full detail {~ description} 2b: careful about detail : PAINSTAKING {~ scholar} 2c: complete in all respects {~ pleasure} 2d: having full mastery (as of an art) {~ musician} 3: passing through - thor.ough.ly av