Technique (noun)

1. A method or skill used in a particular activity or field.
2. A particular way of doing something, especially one that is considered to be efficient or skilful.
3. A particular method of achieving a desired result or effect.

Origin:

Late 18th century: from french technique, from greek tekhnikē (epistēmē) "(art) of making or doing", from tekhnē "art, craft". .

Examples:

1. He is learning new techniques in painting.
2. The technique of meditation.
3. She is learning new techniques in cooking.
4. The techniques of martial arts.
5. The technique of public speaking.