types:
fingerprint
a print made by an impression of the ridges in the skin of a finger; often used for biometric identification in criminal investigations
trace
a visible mark (as a footprint) left by the passage of person or animal or vehicle
mintmark
a mark on a coin that identifies the mint where it was produced
stroke
a mark made on a surface by a pen, pencil, or paintbrush
line
a mark that is long relative to its width
line
in games or sports; a mark indicating positions or bounds of the playing area
cross hair,
cross wire
either of two fine mutually perpendicular lines that cross in the focus plane of an optical instrument and are use for sighting or calibration
loop
the basic pattern of the human fingerprint
thumbprint
fingerprint made by the thumb (especially by the pad of the thumb)
downstroke
a stroke normally made in a downward direction
upstroke
a stroke normally made in an upward direction
dotted line
a line made up of dots or dashes; often used to indicate where you are supposed to sign a contract
ascender
(printing) the part of tall lowercase letters that extends above the other lowercase letters
bar line
a vertical line before the accented beat marking the boundary between musical bars
descender
(printing) the part of lowercase letters that extends below the other lowercase letters
spectrum line
an isolated component of a spectrum formed by radiation at a uniform frequency
trend line
a line on a graph indicating a statistical trend
graduation
a line (as on a vessel or ruler) that marks a measurement
guideline
a light line that is used in lettering to help align the letters
shaft
a line that forms the length of an arrow pointer
serif,
seriph
a short line at the end of the main strokes of a character
staff line
any of the 5 horizontal marks comprising a staff
ledger line,
leger line
(music) a short horizontal line above or below the staff for writing notes that are outside the staff’s range
foul line
lines through 1st and 3rd base indicating the boundaries of a baseball field
foul line
a line across a bowling alley that a bowler must not cross
foul line
a line from which basketball players take penalty shots
baseline
the lines a baseball player must follow while running the bases
goal line
a line marking each end of the playing field or pitch; where the goals stand
red line
a line that is colored red and that bisects an ice hockey rink
baseline,
service line
the back line bounding each end of a tennis or handball court; when serving the server must not step over this line
yard line
in football; line parallel to the goal lines indicating position on the field