Solutions retain the stronghold has 9 entries with similar clues
- fortDefensive stronghold
- castleStronghold and loch in order
- castlesstrongholds in the air, one fancies?
- citadelStronghold
- outpostRemote stronghold
- garrisonBody of troops guarding a stronghold
- fortressmilitary stronghold
- moleculesThe smallest parts of substances that retain their properties of that substance
- fortywinkssleepy signals in a stronghold?