1. periods of time devoted to a particular activity or meeting
Usage: plural of session
2. formal meetings of a court, legislature, or other official body
Usage: legal/governmental context
3. periods of treatment or therapy with a professional
Usage: medical/therapeutic context

Examples

• The training sessions will be held every Tuesday morning.
• Parliament resumed its sessions after the summer recess.
• She scheduled three therapy sessions for next month.
• The recording sessions lasted well into the night.
• Court sessions begin promptly at 9 AM.
• The study sessions helped students prepare for finals.
• He attended anger management sessions as part of his treatment.