All expiration antonyms

noun expiration

• beginning — The beginning of an event or process is the first part of it.
• birth — When a baby is born, you refer to this event as his or her birth.
• commencement — The commencement of something is its beginning.
• living — having life; being alive; not dead: living persons.
• opening — an open or clear space.
• start — to begin or set out, as on a journey or activity.
• inception — beginning; start; commencement.