submarines
word · lemma: submarine
Definition
Submarines are underwater boats that can travel and operate below the surface of the sea. They are mainly used for military purposes but can also do scientific or rescue missions.
Usage & Nuances
'Submarines' is the plural of 'submarine'. Used mostly in military or technical contexts. Not to be confused with 'submarine sandwich' (food). Common phrases: 'nuclear submarines', 'attack submarines'.
Example Sentences
People are fascinated by how submarines can create their own oxygen underwater.
natural
Many submarines patrol the oceans for security.
basic
My brother loves reading about submarines in history books.
basic
Submarines can stay underwater for a very long time.
basic
Modern submarines are almost impossible to detect when they're deep underwater.
natural
During the tour, we saw old submarines that were used in World War II.
natural