Is the word strength a abstract or concrete noun?

Answer 1

The noun 'strength' is an abstract noun as a word for the ability to achieve something, even in a difficult situation; power in a military, political, or economic situation; something that someone does very well; the amount of influence of a person or group; the ability to last for a long time.

The noun 'strength' is a concrete noun as a word for a measurable ability to support a force or weight without breaking; the measurable number of people needed to achieve something; a measurable amount of a substance in something; the measurable speed or force of wind or water; the amount of light, heat, or sound that comes from something.