The corresponding noun for the adjective gentle is gentleness. A related noun form is gentility.
Strength
influential
The word 'harm' is both a noun and a verb. The noun harm is a common, abstract, uncountable noun; a word for physical or mental injury or damage, either deliberate or unintentional.
The noun forms for the verb to give are the giver (the one who gives) and the givee (the one who receives). The word give is also a noun for the quality of flexibility, resiliency, or springiness.
The noun forms for the verb to know are knower (one who knows), and the gerund (verbal noun) knowing. A related noun form is knowledge. The word 'know' is a noun as well as a verb; to be in the know (a word for the state of being informed, aware).
The corresponding noun for the adjective gentle is gentleness. A related noun form is gentility.
The corresponding noun for the adjective sarcastic is sarcasticness.A related noun form is sarcasm.
The verb avert does not have a corresponding noun, it does, however, have a corresponding adjective: avertable.
Argument, arguerer, and the gerund, arguing are the corresponding noun forms for the verb to argue.
Problematic and problematical are the corresponding adjectives to the noun problem. The corresponding adverb is problematically.
The noun form is choice.
"Triumphant" is not a noun. The corresponding noun is "triumph"
Tireless is an adjective. The corresponding noun is tirelessness.
No, lonesome is an adjective. The corresponding noun is lonesomeness.
No, embroider is a verb. The corresponding noun is embroidery.
Affirmation is the corresponding noun to the verb affirm.