Assertion: proper noun's noun | /r/UsedFor | refer to quality
Facets:
Source sentences:
text: An abstract noun is a noun which refers to ideas, qualities, and conditions - things that cannot be seen or touched and things which have no physical reality, e.g. truth, danger, happiness, time, friendship, humour.
text: "... an abstract noun refers to an action, concept, event, quality, or state (love, conversation), whereas a concrete noun refers to a touchable, observable person or thing (child, tree).