Sentence:  I call it the <WSD>babysitter test</WSD>. Can I give a remote control to a 15-year-old, gum-snapping Valley Girl and explain, clearly and succinctly in less than 3 minutes, how she can watch TV? Without getting a panicked call when "American Idol" begins? TiVo passes the test. 
Meaning of the word marked with <WSD> tags:  A test for the ease of use of household appliances.