Read the dictionary definition of able. All definitions for this word.
1. (usually followed by `to') having the necessary means or skill or know-how or authority to do something
1. able to swim
2. she was able to program her computer
3. we were at last able to buy a car
4. able to get a grant for the project
2. having inherent physical or mental ability or capacity
1. able to learn
2. human beings are able to walk on two feet
3. Superman is able to leap tall buildings
3. have the skills and qualifications to do things well
1. able teachers
2. a capable administrator
3. children as young as 14 can be extremely capable and dependable
4. having a strong healthy body
1. an able seaman
2. every able-bodied young man served in the army