Closed

shut sealed obstructed sleep pluriclosed supershape natural demiclosed lickorish wallace theorem impassable unclosed contain semiclosed biodome electric circuit stopped outside world swing bin subalgebra subgroupoid compact quantum logic multilobe null infinity on latch walled garden ministring subsemigroup operation uvala pseudovariety open disconnected spaceship earth lack fundamental group wild polygon of forces complement chinese postman problem cycle superellipsoid variable deadlight lamination lower semi continuous unopened plagiostomy cosymplectic loop upper semi continuous semigroup heegaard occluded tame free klein bottle convertible meander macrocyclic gate close ellipse poloid quasibound nonclosed mixfix pseudo penannular symplectic cone superdisk superellipse clopen tour leafspace hyperhamiltonian claustrophobia transfenestrate inaccessible k cell biclosed overclose knot category oil gas murasugi sum image closedness topology microsupport prime poincaré conjecture jordan curve sober space semialgebra gas engine monoid door box room punch latch bud lock squint convent wink