wotcher or wotcha/ʹwochə/ interj

• in somebody's confidence
• in somebody's corner
• in somebody's debt
• in somebody's favour
• in somebody's good/bad/black books
• in somebody's hair
• in somebody's midst
• in somebody's pocket
• insomnia
• insomuch as
• insomuch that
• in sooth
• insouciance
• insp.
• in spades
• inspan
• in specie
• inspect
• inspector
• inspiration
• inspire
• inspired
• in spirit
• inspirit
• in spirits