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

• bottle-sliders
• bottle store
• bottle tree
• bottle trees
• bottle up
• bottle-washer
• bottle-washers
• bottling
• bottom
• bottom dead centre
• bottom drawer
• bottom drawers
• bottomed
• bottom end
• bottom ends
• bottom feeder
• bottom feeders
• bottom fish
• break one's duck
• break one's heart
• break one's mind
• break one's word
• break out
• breakout
• break point