To simplify or organize a process in order to increase its efficiency.
To design and construct the contours of a vehicle etc. so as to offer the least resistance to its flow through a fluid.
To modernise.
On a weather chart, a line that is tangent to the flow of the wind.
A line that is tangent to the velocity of flow of a fluid; equivalent to the path of a specific particle in that flow.
To reduce or gradually eliminate something (such as a debt).
To cut or shape wood with a knife.
To make eager or excited; to excite with liquor; to inebriate.
A knife; especially, a pocket knife, sheath knife, or clasp knife.