Solutions castle's protective trench has 8 entries with similar clues

• 5-letter words
• ditchBoundary trench
• fosseA long ditch or trench
• 6-letter words
• dugoutSoldiers trench
• 7-letter words
• effortsattempts to get iron back to castles
• paradosDefensive bank behind a trench to protect from the rear
• 8-letter words
• traverseDefensive barrier of mud bank in front of a trench
• 13-letter words
• pioneer-corpsArmy body preparing trenches, etc.
• 63-letter words
• challenger-deep-in-the-marina-trench-in-the-north-pacific-oceanThe world's deepest ocean trench