What does availabilities mean?
Availabilities is the plural form of availability, a noun describing the state of being accessible, usable, or obtainable. In its most common modern sense, it refers to the free time slots a person has open — as in asking a colleague to share their availabilities for a meeting — but it also applies to things like hotel rooms, appointment openings, or system uptime. The word carries a practical, administrative tone and appears most often in professional, commercial, and technical contexts such as scheduling emails, booking systems, and service-level reports. While some treat availability strictly as an uncountable noun and consider the plural unusual, availabilities is well established in business English, especially when distinguishing between multiple people's schedules or several categories of open slots. It derives from the verb avail, ultimately rooted in Latin valere, meaning 'to be strong or of worth', making it part of a large family of value-related words.
nounThe plural of availability: the state or degree to which something is accessible, ready for use, or obtainable; also, the times or slots at which a person or resource is free.
- The quality or state of being available; the extent to which a resource, service, or product can be used or obtained (e.g. system uptime, product stock).
- Free time or open slots in a person's schedule, especially when coordinating meetings or appointments.
"Please send me your availabilities for next week so I can schedule the meeting."
"The hotel website shows real-time room availabilities across all its properties."
"Could you share your availabilities for a call on Thursday or Friday?"
As the headword is itself a plural noun, its singular form is 'availability'. The plural is common when referring to multiple time slots, resources, or categories of open stock.
"We compared the availabilities of three venues before choosing one."
In scheduling emails, people increasingly write 'availabilities' in the plural — a form that sounds odd to some ears but is now firmly established in business English.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does availabilities come from?
Availabilities comes from availability, formed from the verb avail plus the suffix -ability. Avail entered Middle English from Anglo-Norman French availer, deriving from Latin ad ('to') plus valere ('to be strong, be of worth'). The same Latin root gave English words such as prevail, valor, valid, and value. The plural form arose naturally in modern usage, particularly in scheduling and inventory contexts where distinct open slots or stocks are counted individually.
Related word forms
How availabilities is actually used
The plural 'availabilities' is common in business and scheduling contexts, particularly when referring to multiple free time slots or several resources. Some style guides and speakers prefer the singular 'availability' even in these cases, treating it as an uncountable noun; the plural can therefore sound informal or slightly nonstandard to certain readers, though it is widely accepted in workplace communication.
Easily confused with availabilities
Ability refers to a person's skill or capacity to do something, whereas availability refers to whether something or someone is accessible or free for use.