portcullis /pōrt- or pört-kulˈis/

1. A grating that can be let down to close a gateway of a castle, fortress, etc
2. A lattice (heraldry)
3. One of the pursuivants of the English College of Heralds
4. An Elizabethan silver halfpenny with a portcullis on the reverse

To obstruct, as with a portcullis

• quadringenary
• quadrinomial
• quadrinomials
• quadripartite
• quadripartition
• quadriplegia
• quadriplegias
• quadriplegic
• quadriplegics
• quadripole
• quadripoles
• quadrireme
• quadriremes
• quadrisect
• quadrisected
• quadrisecting
• quadrisection
• quadrisections
• quadrisects
• quadrisyllabic
• quadrisyllable
• quadrisyllables
• quadrivalence
• quadrivalences
• quadrivalent