Double lock definitions

Double-lock

1) Secure door feature
Found on https://www.crosswordclues.com/clue/double-lock

---

Double-lock

• (v. t.) To lock with two bolts; to fasten with double security.
Found on http://thinkexist.com/dictionary/meaning/double-lock/

---

Double-lock

Dou'ble-lock` transitive verb To lock with two bolts; to fasten with double security. Tatler.
Found on http://www.encyclo.co.uk/webster/D/113

---

double-lock

to lock with two turns of a key, so that a second bolt is engaged. · to fasten with particular care.
Found on https://www.infoplease.com/dictionary/double-lock

---