available

Compared meaning: able to be used or obtained (adjective).

比较义项：可以使用的（形容词）。

• available 本词

  Stresses that something or someone can be obtained, accessed, or is free at a given time; used for people's schedules, stock, seats, or resources, not about how well something works.

  强调某物或某人在某个时间可以获得、可以联系到或有空，多用于人的日程、库存、座位或资源，而不涉及东西好不好用。

  Tickets for the concert are still available online.

  演唱会的门票网上仍然有售，可以买到。

• usable

  Stresses that something is still in working condition or good enough quality to serve its purpose, focusing on function rather than whether anyone can obtain or access it.

  强调某物仍处于可正常运作或质量足够好的状态，能发挥其用途，重点在功能本身，而不是别人能不能获得或联系到它。

  The old bicycle was rusty but still perfectly usable.

  那辆旧自行车虽然生锈了，但依然完全能用。

Both words mean something can be used, but from different angles. Available stresses something or someone can be obtained or is free now. Usable stresses something is still in working condition and functions properly. Available's other meaning, 'single, not in a relationship', is not compared.

这两个词都表示“可以使用”，但角度不同：available 强调某物／某人此刻可以获得、抽得出空，不涉及好不好用；usable 强调状态或功能仍然完好，能正常发挥作用。这里不比较 available 表示“单身、没有伴侣”的用法。

Compared meaning: open for business, able to be used (adjective).

比较义项：营业的，可获得的（形容词）。

• open

  Describes a place, shop or institution that is operating and ready for people to enter or use, e.g. shops, offices, borders, positions; not used for a person's free time or a product's supply.

  指某个场所、商店或机构正在营业、运作，可供人们进入或使用，常用于商店、办公室、边境、职位等；不用来指某人有没有空，也不用来指某样产品是否有货。

  The pharmacy on Main Street is open until midnight.

  缅街上的那家药店营业到午夜。

• available 本词

  Describes a person, product or service that can be obtained or used when needed, often about someone's schedule, a seat, a room or an item in stock; broader in use, applying to people or things rather than places.

  指某个人、产品或服务在需要时可以被获得或使用，常用于某人的日程安排、座位、房间或库存中的商品；用法更宽泛，既可指人也可指物，而不是指场所本身。

  The manager will be available for a meeting tomorrow morning.

  经理明天上午有空开会。

Open and available both mean 'ready to use' here, but focus differs. Open stresses that a place or organization is operating. Available stresses that a person, thing or service can be obtained now. Open's common meaning, 'not closed', and its verb use are not compared.

open 和 available 在这个意义上都可以表示“可供使用”，但侧重点不同：open 强调某个场所或机构正处于营业、运作或开放状态；available 强调某人、某物或某项服务此刻能被获得或利用。这里不比较 open 表示“打开的、未关闭的”这一更常见的形容词义，也不比较它作动词“打开”的用法。