As nouns the difference between estuary and firth
is that estuary is coastal water body where ocean tides and river water merge while firth is an arm of the sea; a frith.
estuary
English
Alternative forms
* (archaic)
Noun
(estuaries)
Coastal water body where ocean tides and river water merge.
An ocean inlet also fed by fresh river water.
Derived terms
* Estuary English
firth
English
Noun
(
en noun)
An arm of the sea; a .
Synonyms
* (l)
Hypernyms
* (l), (l)
Anagrams
*