gates
Swinging barrier doors
Gates are movable barriers controlling passage through walls, fences, or other boundaries.
A gate swings open; a door slides or lifts.
Gates also control flow in other systems: a gate at an airport terminal, a logic gate in electronics, a gate controlling water in a dam.
To gate is to restrict access: The community is gated.
In skiing, gates are pairs of poles marking a course. (Capitalized Gates often refers to Bill Gates.)
Imposing entrance or gate
- thresholdPoint of beginning
- doorwayPassage into a room
- entrancePoint of access
- archwayCurved overhead passage
wicket · turnstile · gatehouse · drawbridge · portcullis · latch · hinge · sentry
Boundary structure between properties
- wallVertical enclosing structure
- barrierObstruction preventing passage
- enclosureConfined, bordered space
- perimeterShape's outer edge length
boundary · blockade · palisade · fortification · rampart · stockade · security · lock
Mechanism requiring a key
- canalDug water passage
- sluiceGated water conduit
- floodgateWater-controlling barrier mechanism
- spillwayDam's water release structure
dam · waterway · levee · weir · reservoir · flow · channel · irrigation
Initiating an action
- slalomSki race through gates
- downhillToward the bottom
- coursePlanned path forward
- polesLong sticks or extremities
race · timing · finish · alpine · parallel · markers · flags · intervals
Science of valid reasoning
- transistorSemiconductor signal switch
- ORInclusive logic gate
- NANDNegated-and logic operation
- XORTrue iff inputs differ
flip-flop · binary · boolean · semiconductor · microchip · processor · integrated · silicon
portal
Imposing entrance or gate
archway · wicket · turnstile · gatehouse · drawbridge · portcullis · latch · hinge · sentry · admission
fence
Boundary structure between properties
- wallVertical enclosing structure
- barrierObstruction preventing passage
- enclosureConfined, bordered space
perimeter · boundary · blockade · palisade · fortification · rampart · stockade · security · lock · padlock
lock
Mechanism requiring a key
spillway · dam · waterway · levee · weir · reservoir · flow · channel · irrigation · tailgate
starting
Initiating an action
poles · race · timing · finish · alpine · parallel · markers · flags · intervals
logic
Science of valid reasoning
- transistorSemiconductor signal switch
- ORInclusive logic gate
- NANDNegated-and logic operation
XOR · flip-flop · binary · boolean · semiconductor · microchip · processor · integrated · silicon · voltage
- airportterminal, runway, baggage claim, arrivals, departures
- airportsairports, airport, terminals, terminal building, runway
- securitysecurity guard, security cameras, alarm system, security system, lock
- airport featuresshuttle, jetway, jet bridge, sliding doors, barrier
- barrierswalls, wall, fences, fence, barrier
- base buildingswalls, towers, barracks, defenses, turrets
gateswalls
Vertical enclosing structures
blank walls · barriers · barricades · blockades · ramparts
gatesprisons
Detention facilities for criminals
cages · cells · dungeons · traps · enclosures
gatesopen spaces
Unoccupied expanses or gaps
open fields · freedom · thoroughfares · open borders · free entry
- Gateway ArchCatenary-shaped memorial in Missouri
- Bill Gates
- Golden Gate ParkLarge San Francisco park
- baby gatePortable toddler containment fence
- front gatePrimary property entrance
- gated communitiesEnclosed neighborhoods with controlled access
gate, gateway, gated, gatekeeper, gateways, gating, gatepost, gatekeepers, watergate