1. (adjective) fit or ready for use or service

• functional
• operational
• usable
• useable

2. (adjective) usable for a specific purpose

• practicable

1. (adjective) fit or ready for use or service

• serviceable

2. (adjective) usable for a specific purpose

• practical

1. (adjective) fit or ready for use or service

• apply
• apply
• employ
• employ
• use
• use
• utilise
• utilise
• utilize
• utilize
• functionality
• serviceability
• serviceability
• serviceableness
• serviceableness
• usability
• usability
• usableness
• usableness
• useableness
• useableness

2. (adjective) usable for a specific purpose

• practicability
• practicability
• practicableness
• practicableness

1. (adjective) capable of being treated by surgical operation

• inoperable