To speak or write at length upon or on (some subject); expand; elaborate
To extend the time allowed for compliance with (an order or rule).
To increase the capacity of; to expand; to give free scope or greater scope to; also, to dilate, as with joy, affection, etc.
To get more astern or parallel with the vessel's course; to draw aft; said of the wind.
To make (something) larger.
To grow larger.
To get distracted and lose track of something (one's train of thought, a conversation).