singular

1. Artillery piece, cannon, small cannon.

1. Bascinet, basinet.
2. Oval-shaped metal helmet forming a point toward the top of the head. It often had a visor which could have a pointed shape too and could be opened upwards or sideways by swinging on pivots.

1. Square tower.
2. Tower with a cubic shape.

1. Raid.
2. Campaign. [Pedro, ch. 36: 29]

1. Belfry, siege engine, siege tower. [Fernando, ch. 20; João2, chs. 12, 135]
2. Wooden tower normally used in attacking city walls. (CW)
3. See Ian Barnes, The Historical Atlas of Knights and Castles (New York: Chartwell Books, 2007), p. 222 and 226.

Quiver.

1. Small circular shield.
2. Large cavalry shield or circular infantry shield. See Ian Barnes, The Historical Atlas of Knights and Castles (New York: Chartwell Books, 2007), p. 160.

1. Pavise. (JP) [Fernando, ch. 135]
2. Large shield used by archers and bowmen to protect them while reloading their weapons. They usually had a protruding ridge running along the shield . See 'Knights and Chivalry:  Glossary',  http://members.tripod.com/aaron_neilson/glossary.html

1. Adargue; heart-shaped shield. See 'Knights and Chivalry:  Glossary',  http://members.tripod.com/aaron_neilson/glossary.html
2. Oval or heart-shaped leather shield.
3. (Fig.) Defense, shelter.