| armored |
| backdoor(obscure, unknown, clandestine, underground, undisclosed) |
| befog(verb, obscure, confuse, blinded, bulwarked) |
| blinding(verb, close, obscure, fortify, blinded) |
| bulwarked(verb, close, fortify, blinded, safeguard) |
| canvassed |
| cast a shadow(verb, expression, idiom, close, obscure) |
| ceiled |
| chilled |
| clandestine(adjective, secret, unknown, hidden, concealed) |
| close(obscure, secret, unknown, hidden, gag) |
| cloud(verb, dim, blinded, overspread, sulk) |
| cloud over(verb, expression, close, obscure, blinded) |
| cloud the issue(verb, expression, idiom, obscure, confuse) |
| cloud up(verb, expression, close, obscure, blinded) |
| clouded over(verb, expression, close, obscure, blinded) |
| comprehended |
| confidential(adjective, separate, secret, clandestine, underground) |
| coped |
| cover(verb, adjective, obscure, blast, fortify) |