General strength:
* ισχυρός (ischyros): This is a general term for strength, both physical and mental.
* δυνατός (dynatos): This word implies power and capability.
* άπειρος (apeiros): This word signifies limitless strength or power, often used in a metaphorical sense.
Physical strength:
* δυνατός (dynatos): This word can also specifically refer to physical strength.
* ατλάντειος (atlanteios): This word refers to the strength of Atlas, the Titan who held up the sky.
Mental strength:
* ισχυρός (ischyros): This word can also refer to mental strength or willpower.
* θαρραλέος (tharraléos): This word means "courageous" or "brave."
Other specific meanings:
* στερεός (stereos): This word means "solid" or "firm," and can be used to describe something that is strong and durable.
* ανθεκτικός (anthektios): This word means "resistant" or "resilient," and can be used to describe something that is strong and can withstand stress.
Example:
* Έχει ισχυρή θέληση. (He has a strong will.)
* Είναι δυνατός άντρας. (He is a strong man.)
* Η πόλη έχει ισχυρή άμυνα. (The city has strong defenses.)
The best word to use will depend on the specific context and the nuance you want to convey.