This is the 282nd most frequent Russian word.
имеют
"Have" or "possess."
Used here as 'have' to indicate possession.
Они имеют значительные достижения в науке.
They have significant achievements in science.
Here 'имеют' is used to denote the possession of an ability.
Некоторые животные имеют возможность дышать под водой.
Some animals have the ability to breathe underwater.
The meaning of 'имеют' here is 'have' as in possessing importance.