Au fait and Equal to

Au fait adjective - Being up to particular standard or level especially in being up to date in knowledge.

Equal to and au fait are semantically related In some cases you can use "Equal to" instead an adjective phrase "Au fait".

Equal to adjective - Having the requisite qualities for.

Au fait and equal to are semantically related in able to perform well topic. Sometimes you can use "Au fait" instead an adjective phrase "Equal to".