1. A pin through the bitthead to keep the mooring lines from slipping off

Derived forms: bitt pins

Type of: pin

• in demand
• in detail
• in dishabille
• in due course
• in due season
• in due time
• in earnest
• in effect
• in essence
• in everyone's thoughts
• in evidence
• in extremis
• in fact
• in fiscal matters
• in flagrante delicto
• in flight
• in for
• in force
• in front
• in full
• in full action
• in full swing
• in full view
• in gear
• in general