(palmistry) A line on the palm of the hand, curving about the base of the thumb, supposed to indicate, by its form or position, the length of a person's life.

(nautical, military, obsolete) A ship of the line or battleship.

(time) fifteen minutes.

(geometry) A line joining centers of figures. / (engineering) A line joining two centers, or fulcra, as of wheels or levers. / A line which determines a dead center.

Former official name of the country of Turkey (now Republic of Türkiye).

(idiomatic) Something very funny or amusing.

(physics) An imaginary line in a field of force, whose tangent at any point gives the direction of the field at that point and whose number through unit area perpendicular to the field represents its intensity.

(idiomatic) Approximate, rough, simplified, especially of a calculation, estimation or other reasoning.

A straight line along which an observer has a clear view. / (weaponry) The line which passes through the front and rear sight, at any elevation, when they are sighted at an object.

(idiomatic) To dislike; to regard with skepticism, disbelief, disfavor, etc.