Word: seamark
Part of speech: Noun
Syllables: sea
mark
Definition: A beacon, buoy, etc. placed in the sea to aid navigation.
Morphemes:
Affix: sea
Language: en
PoS: Noun
Meaning: Anything resembling the vastness or turbulence of the sea.
Affix: mark
Language: en
PoS: Noun
Meaning: A stone or post used to indicate position and guide travellers.