#subscription

• To subscribe — The act of contracting, purchasing, or securing in advance the right of periodic use of a service, publication, show, or digital platform, in exchange for paying a sum of money. It is used almost exclusively as a reflexive verb ('to subscribe').
• Subscription / Membership — An agreement or contract by which an individual or legal entity secures the right to periodically use a service, receive a publication, attend cultural or sports venues, or access a digital platform, in exchange for a fee paid in advance or on a recurring basis. It also denotes the document or pass that proves this right.
• Subscribing / Opt-in — The act of subscribing; the formal or digital process through which a person secures the right to periodically use or receive a service, publication, or content, either for a fee or free of charge.
• Subscriber — A person or entity that holds a subscription based on a contract to regularly receive a service (publications, telecommunications, transport); (adjectival) registered for a periodic service or frequently visiting a specific place.
• Subscriber — A female person or a registered entity holding a subscription based on a contract to regularly receive a service; (adjectival) registered for a periodic service or frequently visiting a specific place.