Definition: A small object or device that is released from a satellite into orbit around a planet or moon.

Example: The subsatellite was deployed to gather data on the planet's atmosphere.

Definition: To agree to receive something regularly, like a magazine or service, usually by paying for it.

Example: I decided to subscribe to the monthly magazine about cooking.

Definition: To agree to receive something regularly, such as a publication or service, usually by paying for it.

Example: I decided to subscribe to the magazine for a year.

Definition: A person who pays to receive a service or publication regularly, such as a magazine or online content.

Example: She is a subscriber to several online news services.

Definition: A payment made to receive a service or product regularly, like a magazine or online content.

Example: I renewed my subscription to the streaming service for another year.

Definition: Relating to or located beneath the surface of the sea.

Example: The subsea pipeline transports oil from the ocean floor to the shore.

Definition: A part or section that is completely inside another part or section.

Example: The subsegment of the data was analyzed separately to find specific trends.

Definition: Relating to a speed that is slower than the speed of sound in a specific medium, such as air.

Example: The aircraft was designed to operate at subsonic speeds for better fuel efficiency.

Definition: In a way that is slower than the speed of sound.

Example: The aircraft flew subsonically, creating less noise than supersonic jets.

Definition: A place where electricity is transformed and distributed, or a smaller branch of a larger organization, like a post office.

Example: The new substation will help improve the electricity supply in the area.

Definition: Able to be replaced with something else or used in place of another item.

Example: In many recipes, butter is substitutable with margarine.