01 v. t. To extent in length; to make longer in extent or duration; as, to lengthen a line or a road; to lengthen life; -- sometimes followed by out.
imp. & p. p.
Lengthened; p. pr. & vb. n.
Lengthening
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1.
To extent in length; to make longer in extent or duration; as, to lengthen a line or a road; to lengthen life; -- sometimes followed by out.“What if I please to lengthen out his date.” — Dryden.