IPA: /ˈdiːkən/
KK: /ˈdiːkən/
A person in a religious role who assists a priest or minister, often involved in church services and community support.
The deacon helped organize the charity event for the church.
Deacon comes from the Greek word "diakonos" (meaning servant or minister). The term originally referred to a person who serves in a religious capacity, particularly in the Christian church.
Think of a 'servant' ('diakonos') in a religious role — that's why a deacon is someone who serves in a church.