English

Noun

first port of call ‎(plural first ports of call)

1. (nautical) The first port that a vessel calls in at after the start of a voyage

   After leaving from Southampton, our first port of call will be Gibraltar.

2. (idiomatic) The first place to go to start a process.

   When you move to a new country, your first port of call is often the local police.

   To find the meaning of a word, your first port of call should be a decent dictionary.