naiad

As a proper noun naiad

is (astronomy) a moon of neptune.

As a noun vila is

fairy (mythical being).

In greek mythology terms the difference between naiad and siren

is that naiad is a female deity (nymph) associated with water, especially a spring, stream, or other fresh water while siren is (original sense) One of a group of nymphs who lured mariners to their death on the rocks.

As a proper noun Naiad

is a moon of Neptune.

As a verb siren is

to make a noise with, or as if with, a siren.

As an adjective siren is

relating to or like a siren.

As a noun fairy

is (uncountable|obsolete) the realm of faerie; enchantment, illusion.

As a proper noun naiad is

(astronomy) a moon of neptune.

As nouns the difference between naiad and oceanid

is that naiad is a female deity (nymph) associated with water, especially a spring, stream, or other fresh water while Oceanid is any of the sea nymphs, daughters of Oceanus and Tethys.

As a proper noun Naiad

is a moon of Neptune.

As proper nouns the difference between naiad and hermaphroditus

is that naiad is (astronomy) a moon of neptune while hermaphroditus is (greek god) the son of hermes and aphrodite who merged bodies with a naiad.