The abstract noun for the adjective warm is warmth.
Explanation:
- Warmth refers to the quality or state of being warm.
- It is an abstract noun because it represents an idea, feeling, or state that cannot be physically touched, such as emotional warmth (kindness, affection) or physical warmth (comfort, heat).
For example:
- “I felt the warmth of the sun.”
- “Her warmth made everyone feel welcome.”