space of time, or continued duration, esp. when short; a time; as, one while we thought him innocent.-that which requires time; labor; pains.-to cause to pass away pleasantly or without irksomeness or disgust; to spend or pass; -- usually followed by away.-to loiter.-during the time that; as long as; whilst; at the same time that; as, while i write, you sleep.-hence, under which circumstances; in which case; though; whereas.-until; till.