General:
* Accessibility: This emphasizes the ease with which something can be obtained or reached.
* Readiness: This suggests a state of preparedness or being ready for use.
* Presence: This focuses on the fact that something exists and is present.
* At hand: This implies something is easily accessible and readily available.
For people:
* Free time: This refers to the time someone has available for activities.
* Openness: This suggests someone is willing to be available or open to new experiences.
* Unoccupied: This means someone is not busy or engaged with other activities.
For products or services:
* In stock: This indicates that a product or service is currently available for purchase or use.
* On hand: Similar to "in stock," this emphasizes that something is readily available.
* Supply: This refers to the quantity of something that is available.
For information:
* Accessible: This emphasizes that information is easily obtainable.
* Open: This suggests that information is freely available and not restricted.
* Public: This means that information is available to everyone.
The best synonym for "availability" will depend on the specific context in which you are using it.