All closure antonyms

noun closure

• disclosure — the act or an instance of disclosing; exposure; revelation.
• commencement — The commencement of something is its beginning.
• introduction — the act of introducing or the state of being introduced.
• beginning — The beginning of an event or process is the first part of it.
• start — to begin or set out, as on a journey or activity.
• opening — an open or clear space.
• key — a small metal instrument specially cut to fit into a lock and move its bolt.