practise

practise, practised, practised

To do repeatedly; to train

練習

Practise vs. Practice

Practise → used only as a verb.
Examples:
- She practises the piano every evening.
- Doctors must practise medicine responsibly.
Practice → used only as a noun.
Examples:
- His medical practice is located in London.
- Daily practice improves your skills.
  
  American English
Practice → used as both verb and noun.
Examples:
- She practices the piano every evening.
- His law practice is very successful.
  
  Summary:
In British English, use practise for the verb and practice for the noun.
In American English, practice covers both verb and noun.
The spelling practise is never correct in American English.