Definition of subject-object in US English:

subject-object

noun

  • Philosophy. A subject who, by self-awareness, is also an object; specifically (in the thought of Fichte) the ego; (also) an object of knowledge as it exists in the mind of the knowing subject.

adjective

  • 1Chiefly Philosophy. Of or relating to a subject and an object; (of a conscious act or process) bringing subject and object into relation. Also (rare): of or relating to a subject-object.

  • 2Grammar. Relating to the subject and object in a sentence.

Origin

Early 19th century; earliest use found in Samuel Taylor Coleridge (1772–1834), poet, critic, and philosopher. From subject + object.