The term 'Be Wide Open' can be summarized by two crossword solutions: YAWN (4 letters) and GAPE (4 letters). Yawning is an involuntary reflex that occurs when a person is tired, bored, or stressed. It is often accompanied by a deep inhalation of breath and an open mouth. Gaping is a similar action, but it is voluntary and usually done in response to surprise or shock. Both actions involve opening the mouth wide, hence the phrase 'Be Wide Open'.