Abstract noun is a type of noun that denotes a name, idea or quality having no physical form. It can be seen by our mind but not of our naked eyes.
Examples:
love | strength | beauty |
courage | strength | beauty |
unity | cooperation | faith |
belief | anger | truth |
kindness | hatred | justice |
sympathy | peace | happiness |
loneliness | cleanliness | duty |
politeness | respect | obedience |
duty | patience | admiration |
health | acceleration | education |