Select the most appropriate one-word substitution for the given group of words. 

An ability to use one's hands skillfully.

Dexterity

The most appropriate one-word substitution for the given group of words is dexterity.

• Dexterity means skill in using the hands or body; agility.
• Exhortation means a strong urging or appeal.
• Dyke means a wall or embankment built to prevent flooding.
• Phonetics is the study of the sounds of speech.