subject

How to sign: the subject matter of a conversation or discussion
"he didn't want to discuss that subject"; "it was a very sensitive topic"; "his letters were always on the theme of love";

Similiar / Same: topic, theme

Categories: content, message, subject matter, substance

Within this category: bone of contention, keynote, precedent, question

subject

How to sign: a branch of knowledge
"in what discipline is his doctorate?"; "teachers should be well trained in their subject"; "anthropology is the study of human beings";

Similiar / Same: discipline, subject area, subject field, field of study, branch of knowledge, bailiwick, field, study

Categories: knowledge base, knowledge domain

Within this category: allometry, architecture, bibliotics, communications, engineering, frontier, futurology, humanistic discipline, major, military science, numerology, occultism, ology, protology, science, theogony, theology