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

• sheet
• sheet anchor
• sheet anchors
• sheet bend
• sheet bends
• sheet copper
• sheeted
• sheet-feed
• sheet-feeded
• sheet-feeder
• sheet-feeders
• sheet-feeding
• sheet-feeds
• sheet film
• sheet-glass
• sheetier
• sheetiest
• sheeting
• sheetings
• sheet iron
• sheet lead
• sheet lightning
• sheet metal
• sheet music
• sheet rubber