1. Obstruct access to
   - blockade 
2. Render unsuitable for passage
   - barricade, block, blockade, stop, block up, bar 
3. Block off the passage through
   - shut off, close off

Derived forms: blocked off, blocking off, blocks off

Type of: block, close up, impede, jam, obstruct, obturate, occlude

• Syria
• Syriac
• Syrian
• Syrian Arab Republic
• Syrian bean caper
• Syrian bear
• Syrian Desert
• Syrian hamster
• Syrian monetary unit
• Syrian pound
• syringa
• Syringa amurensis japonica
• Syringa emodi
• Syringa josikaea
• Syringa josikea
• Syringa persica
• Syringa reticulata
• Syringa villosa
• Syringa vulgaris
• syringe
• syrinx
• Syrrhaptes
• Syrrhaptes paradoxus
• syrup
• syrupy