A specialization of spatially continuous thing. This is the collection of all lines, broadly construed. Unlike its specialization space line (q.v.), this collection's instances need not actually be OneDimensionalThings, but may instead be simply near approximations of such (see e.g. line of demarcation for sports area). LinearObjects can be tangible or intangible, straight or curved.

Other specializations of this collection are portion of a line, straight thing, and linear object tangible.