noun | verb
lineline1 /laɪn/ noun 1 
a line of people► line several people or things who are standing next to each other, or standing one behind the other: The teacher asked us to stand in a line. There was a line of tables across the back wall, full of food. ➔ Sometimes people stand in line or wait in line while they are waiting in a line of people to do something: I had to wait in line at the bank. | A lot of people were standing in line outside the movie theater.
► row one of several lines of people or things: I was sitting in the back row of seats in the classroom. The corn is planted in long rows across the field.
► in single file in a line with one person behind the other: The path was so narrow that we had to walk in single file. ➔ GRAMMAR: You can also say that people walk or move single file, without the word “in”: Bicyclists should ride single file so that cars can pass.
2 a line on paper► line a long thin mark on paper or on another surface: Draw a straight line across the top of the page.
► outline a line around the edge of something which shows its shape: The children all drew outlines of their feet on one big sheet of paper.
3 a line on the ground or other surface► line a long thin mark on the ground or on another surface: If the ball goes over this line, it’s out of play. When you park the car, try to keep the car between the two yellow lines.
► stripe a long narrow line of color, usually part of a pattern where the line is repeated many time: The American flag has red and white stripes.
► wrinkle a line in a piece of clothing that is caused when it has not been folded or hung correctly: You should iron that shirt - it has a lot of wrinkles.
► crease a line on a piece of clothing or material where it has been folded or pressed with an iron: When you iron the pants, can you put a sharp crease in the leg?
► tracks lines or marks on the ground that were made by someone or something that was moving: The car left tracks in the mud on the dirt road.
➔ see fold24 a deep line in the ground► rut a deep narrow line in the ground, made by a wheel: There was a rut in the dirt road where the mud had become hard in the sun.
► groove a thin line that has been cut into a hard surface: You cut a groove into both pieces of wood, and then join them together.
► furrow a wide deep line made in the the ground for planting seeds in: The farmer used a plow to make furrows in the field, and then he planted the seeds.
5 a line on someone’s skin► line a line on the skin of someone’s face, for example a line that appears when you get older or when you frown: She frowned, and lines appeared between her eyebrows.
► wrinkle a line on someone’s face or skin, which is caused by growing old: The old woman’s face was covered with wrinkles.
► crease a deep line on someone’s face or skin: There were creases at the corners of his eyes.
► furrow a deep line in the skin of someone’s face, especially on the forehead (=part above your eyes): A deep furrow appeared between his eyebrows.
➔ see border rope stripe noun | verb
lineline2 /laɪn/ verb ► line if people line a street, they stand next to each other in lines along the sides of it, especially for an important event: Hundreds of fans lined the streets to celebrate their team’s victory. The roads were lined with crowds of people waving American flags.
► line up to form a line of people or things: The runners lined up for the start of the race. Cans were lined up neatly on the kitchen shelves.
► get in line also form a line if people get in line, they move so that they are standing next to each other, or one behind the other. You use get in line in everyday English, and form a line sounds more formal: The teacher asked the class to quietly get in line to go to lunch. At the end of the performance, the dancers formed a line and bowed.