sea Definition

  • 1the saltwater that covers most of the earth's surface and surrounds its landmasses
  • 2a particular expanse of saltwater, especially a sea smaller than an ocean

Using sea: Examples

Take a moment to familiarize yourself with how "sea" can be used in various situations through the following examples!

  • Example

    The sea was calm and peaceful.

  • Example

    The Mediterranean Sea is located between Europe and Africa.

  • Example

    We went for a swim in the sea.

  • Example

    The ship sailed across the sea for weeks.

sea Synonyms and Antonyms

Synonyms for sea

Antonyms for sea

Idioms Using sea

  • a very small amount compared to what is needed or expected


    The donation was appreciated, but it was just a drop in the ocean compared to what was needed to fund the project.

  • in trouble or difficulty


    He got himself in deep water when he lied to his boss about finishing the project.

  • cause a disturbance or controversy


    The new policy made waves among the employees, who felt it was unfair.

Phrases with sea

  • dead sea

    a salt lake bordered by Jordan to the east and Israel and Palestine to the west, known for its high salt content and therapeutic properties


    Many people travel to the Dead Sea to experience its healing properties.

  • the open ocean outside of any country's territorial waters


    The pirates were caught on the high seas and brought to justice.

  • all the world's oceans considered as a single entity


    He sailed the seven seas in search of adventure.


Summary: sea in Brief

The term 'sea' [siː] refers to the saltwater covering most of the earth's surface and surrounding its landmasses. It can also refer to a particular expanse of saltwater, exemplified by 'We went for a swim in the sea.' 'Sea' extends into phrases like 'dead sea,' and idioms like 'in deep water,' denoting trouble or difficulty, and 'make waves,' meaning to cause a disturbance.

How do native speakers use this expression?