line

A long, narrow mark or band, often made on a surface. It can also refer to a length of rope, string, or wire. More broadly, 'line' can mean a row or sequence of people or things, or a specific conceptual boundary or connection, which might not have a single direct equivalent in some languages as it encompasses various abstract notions like a queue, a policy, a specific area of business, or a connection.

• Please draw a straight line across the page. — This refers to a drawn mark.
• The fisherman cast his line into the water. — This refers to a fishing string.
• There was a long line of people waiting for tickets. — This refers to a queue of people.
• He works in the sales line. — This refers to a specific type or area of business or activity.
• We need to stay within the party line on this issue. — This refers to a policy or ideological position.

To put or arrange things in a row or series, or to form a continuous mark. It can also mean to cover the inner surface of something with a layer of material.

• The soldiers lined up for inspection. — This means to arrange themselves in a row.
• She decided to line the basket with fabric. — This means to cover the inside surface.
• The artist will line the drawing with ink. — This means to draw or mark with a line.