Main Difference
The main difference between Gate and Door is that the Gate is a point of entry to a space enclosed by walls and Door is a movable structure used to open and close an entrance
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Gate
A gate or gateway is a point of entry to a space which is enclosed by walls. Gates may prevent or control the entry or exit of individuals, or they may be merely decorative. Other terms for gate include yett and port. The word is derived from old Norse “gat”, meaning road or path, and originally referred to the gap in the wall or fence, rather than the barrier which closed it. The moving part or parts of a gateway may be considered “doors”, as they are fixed at one side whilst opening and closing like one.
A gate may have a latch that can be raised and lowered to both open a gate or prevent it from swinging. Locks are also used on gates to increase the security. Larger gates can be used for a whole building, such as a castle or fortified town. Actual doors can also be considered gates when they are used to block entry as prevalent within a gatehouse. Today, many gate doors are opened by an automated gate operator.
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Door
A door is a panel made usually of a hard, impermeable, and hard-to-break substance (such as wood or metal), with or without windows, but sometimes consisting of a hard frame into which glass or screens have been fitted, attached to hinges by which it is attached to a frame that constitutes a space for ingress into or egress from a building, room, or vehicle, such that the panel may be moved in various ways (at angles away from the frame, by sliding on a plane parallel to the frame, by folding in angles on a parallel plane, or by spinning along an axis at the center of the frame) to allow or prevent ingress or egress. In most cases, a door’s interior matches its exterior side but in other cases (e.g., a vehicle door) the two sides are radically different in form to support activities of entering or exiting that differ from one another. Often doors have locking mechanisms to ensure that only the owner or custodian or other persons who have rightful access to a space can open them, and can have knockers or doorbells by which outsiders can announce their presence and summon someone either to open the door for them or give permission to open and enter. Apart from providing access into and out of a space, doors can have the secondary functions of ensuring privacy by preventing unwanted attention from outsiders, of separating areas with different functions, of allowing light to pass into and out of a space, of controlling ventilation or air drafts so that interiors may be more effectively heated or cooled, of dampening noise, and of blocking the spread of fire.
Doors may have aesthetic, symbolic, ritualistic purposes. To be given the key to a door can signify a change in status from outsider to insider. Doors and doorways frequently appear in literature and the arts with metaphorical or allegorical import as a portent of change.
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Gate (noun)
A doorlike structure outside a house.
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Gate (noun)
Doorway, opening, or passage in a fence or wall.
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Gate (noun)
Movable barrier.
“The gate in front of the railroad crossing went up after the train had passed.”
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Gate (noun)
A logical pathway made up of switches which turn on or off. Examples are and, or, nand, etc.
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Gate (noun)
The gap between a batsman’s bat and pad.
“Singh was bowled through the gate, a very disappointing way for a world-class batsman to get out.”
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Gate (noun)
The amount of money made by selling tickets to a concert or a sports event.
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Gate (noun)
A line that separates particle type-clusters on two-dimensional dot plots.
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Gate (noun)
Passageway (as in an air terminal) where passengers can embark or disembark.
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Gate (noun)
The controlling terminal of a field effect transistor (FET).
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Gate (noun)
In a lock tumbler, the opening for the stump of the bolt to pass through or into.
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Gate (noun)
The channel or opening through which metal is poured into the mould; the ingate.
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Gate (noun)
The waste piece of metal cast in the opening; a sprue or sullage piece. Also written geat and git.
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Gate (noun)
A mechanism, in a film camera and projector, that holds each frame momentarily stationary behind the aperture.
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Gate (noun)
A tally mark consisting of four vertical bars crossed by a diagonal, representing a count of five.
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Gate (noun)
A way, path.
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Gate (noun)
A journey.
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Gate (noun)
A street; now used especially as a combining form to make the name of a street e.g. “Briggate” (a common street name in the north of England meaning “Bridge Street”) or Kirkgate meaning “Church Street”.
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Gate (noun)
Manner; gait.
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Gate (verb)
To keep something inside by means of a closed gate.
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Gate (verb)
To punish, especially a child or teenager, by not allowing them to go out.
“ground”
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Gate (verb)
To open a closed ion channel.
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Gate (verb)
To furnish with a gate.
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Gate (verb)
To turn (an image intensifier) on and off selectively as needed, or to avoid damage. See autogating.
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Door (noun)
A portal of entry into a building, room, or vehicle, consisting of a rigid plane movable on a hinge. Doors are frequently made of wood or metal. May have a handle to help open and close, a latch to hold the door closed{{,}} and a lock that ensures the door cannot be opened without the key.
“I knocked on the vice president’s door”
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Door (noun)
Any flap, etc. that opens like a door.
“the 24 doors in an Advent calendar”
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Door (noun)
An entry point.
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Door (noun)
A means of approach or access.
“Learning is the door to wisdom.”
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Door (noun)
A barrier.
“Keep a door on your anger.”
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Door (noun)
A software mechanism by which a user can interact with a program running remotely on a bulletin board system. See BBS door.
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Door (verb)
To cause a collision by opening the door of a vehicle in front of an oncoming cyclist or pedestrian.
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Door (noun)
a hinged, sliding, or revolving barrier at the entrance to a building, room, or vehicle, or in the framework of a cupboard
“she looked for her key and opened the door”
“that audition was the door to all my future successes”
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Door (noun)
a doorway
“she walked through the door”
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Door (noun)
used to refer to the distance from one building in a row to another
“he lives just a few doors away from the Strongs”