noun:

1. The official, stated position (or set of positions) of an individual or group, particularly a political or religious faction.
2. A set of positions in a team which play in a similar position on the field; in a traditional team, consisting of three players and acting as one of six lines in the team.
3. A connected series of public conveyances, as a roadbed or railway track; and hence, an established arrangement for forwarding merchandise, etc.
4. A long tape or ribbon marked with units for measuring; a tape measure.
5. The position in which the fencers hold their swords.
6. Acronym of long interspersed nuclear element, a type of retrotransposon in genomics.
7. A line segment; a continuous finite segment of such a figure.
8. A path through two or more points (compare ‘segment'); a continuous mark, including as made by a pen; any path, curved or straight.
9. A small amount of text. Specifically:.
10. A verse (in poetry).
11. A number of shares taken by a jobber.
12. The exterior limit of a figure or territory: a boundary, contour, or outline; a demarcation.
13. A particular path taken by a vehicle when driving a bend or corner in the road.
14. A hose or pipe, of any size.
15. The batter's box.
16. The horizontal path of a ball towards the batsman (see also length).
17. The regular infantry of an army, as distinguished from militia, guards, volunteer corps, cavalry, artillery, etc.
18. A sentence of dialogue, especially in a play, movie, or the like.
19. A clothesline.
20. A measure of length:.
21. A letter, a written form of communication.
22. A rope, cord, string, or thread, of any thickness.
23. The wire connecting one telegraphic station with another, a telephone or internet cable between two points: a telephone or network connection.
24. Population of cells derived from a single cell and containing the same genetic makeup.
25. A group of forwards that play together.
26. The goal line.
27. A close quarters combat system, see LINE (combat system) on Wikipedia.Wikipedia.
28. Proper relative position or adjustment (of parts, not as to design or proportion, but with reference to smooth working).
29. A trench or rampart, or the non-physical demarcation of the extent of the territory occupied by specified forces.
30. That which was measured by a line, such as a field or any piece of land set apart; hence, allotted place of abode.
31. A threadlike crease or wrinkle marking the face, hand, or body; hence, a characteristic mark.
32. A more-or-less straight sequence of people, objects, etc., either arranged as a queue or column and often waiting to be processed or dealt with, or arranged abreast of one another in a row (and contrasted with a column), as in a military formation.
33. A series or succession of ancestors or descendants of a given person; a family or race; compare lineage.
34. An edge of a graph.
35. The equator.
36. Direction, path.
37. A written or printed row of letters, words, numbers, or other text, especially a row of words extending across a page or column, or a blank in place of such text.
38. A small path-shaped portion or serving of a powdery illegal drug, especially cocaine.
39. Lineament; feature; figure (of one's body).
40. Course of conduct, thought, occupation, or policy; method of argument; department of industry, trade, or intellectual activity.
41. A circle of latitude or of longitude, as represented on a map.
42. A measuring line or cord.
43. Instruction; doctrine.
44. A tsarist-era Russian unit of measure, approximately equal to one tenth of an English inch, used especially when measuring the calibre of firearms.
45. A lie or exaggeration, especially one told to gain another's approval or prevent losing it.
46. A set composed of a spike, a drip chamber, a clamp, a Y-injection site, a three-way stopcock and a catheter.
47. Flax; linen, particularly the longer fiber of flax.
48. One twelfth of an inch.
49. An infinitely extending one-dimensional figure that has no curvature; one that has length but not breadth or thickness.
50. One of the straight horizontal and parallel prolonged strokes on and between which the notes are placed.
51. Information about or understanding of something. (Mostly restricted to the expressions get a line on, have a line on, and give a line on.).
52. A vascular catheter.
53. A maxwell, a unit of magnetic flux.
54. One fortieth of an inch.
55. A set of products or services sold by a business, or by extension, the business itself.

verb:

1. To hit a line drive; to hit a line drive which is caught for an out. Compare fly and ground.
2. To cover the inner surface of (something), originally especially with linen.
3. To reinforce (the back of a book) with glue and glued scrap material such as fabric or paper.
4. To form a line along.
5. To represent by lines; to delineate; to portray.
6. To fill or supply (something), as a purse with money.
7. To copulate with, to impregnate.
8. To mark with a line or lines, to cover with lines.
9. To place persons or things along the side of for security or defense; to strengthen by adding; to fortify.
10. To measure.
11. To track (wild bees) to their nest by following their line of flight.
12. To place (objects) into a line (usually used with "up"); to form into a line; to align.
13. To read or repeat line by line.

name:

1. An English and Scottish surname​.