(software) The practice of providing open-source code for a product. / (software) Open-source software in general. / (espionage) Information that is in the public domain and available to everybody.

Alternative form of open-source

Unrestricted by definite limits. / Adaptable to change. / Permitting a spontaneous or unstructured response.

(obsolete) Talkative; eager to speak. / With the mouth open. / Gaping in surprise, wonder or astonishment.

Alternative form of can opener

Alternative form of tin opener; can opener

Done with the hand open rather than clenched / Liberal and generous. / Frank, honest, and tolerant. / Characterized by looseness and fullness.

With an open hand or hands. / Generously.

simple past tense and past participle of open-hand

That part of the sea out of sight of land. / A sea open to all nations, i.e. not a mare clausum.