1. An imaginary straight line along which an observer looks
   - line of sight

Derived forms: lines of vision

Type of: line

• old man
• old man of the mountain
• old man's beard
• old master
• old money
• Old Nick
• Old Norse
• Old North French
• Old North State
• old person
• Old Prussian
• old rose
• old salt
• Old Saxon
• old school
• old school tie
• old sledge
• Old South
• old squaw
• old stager
• old style
• Old Style calendar
• old style font
• Old Testament
• old times