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

• direct mailshots
• direct marketing
• direct method
• direct motion
• directness
• directnesses
• direct object
• direct objects
• Directoire
• director
• directorate
• directorates
• director circle
• director circles
• director-general
• directorial
• directories
• director of public prosecutions
• directors
• director's chair
• director's cut
• directors-general
• directorship
• directorships
• directory