Answer:
"Seacoast," "seascape" or "seashore" may be English equivalents of "marina" as a noun.
Specifically, the Italian word is a feminine noun. Its singular definite article is "la" ("the"). Its singular indefinite article is "una" ("a, one").
Or "marine" may be an English equivalent of "marina" as the feminine singular form of an Italian adjective.
Or "(He/she) marinates" or "(You) marinate" may be English equivalents of "marina" as the third person/formal second person singular of the present indicative of the infinitive "marinare."
Or "Let (him/her) marinate!" or "(You) Marinate!" may be English equivalents of "marina" as the third person/formal second person singular of the present imperative of the infinitive "marinare."
But regardless of the meaning and use, the pronunciation remains the same: "mah-REE-nah."