| Sea of __, south of Ukraine | 27 |
| Sea of __, shallowest in the world | 34 |
| Sea of weeds | 12 |
| Sea of Tranquillity, for the Apollo 11 astronauts | 49 |
| Sea of Tranquillity lander, briefly | 35 |
| Sea of Tranquility toucher | 26 |
| Sea of the U.S.S.R. | 19 |
| Sea of the Solomon Islands | 26 |
| Sea of the Philippines | 22 |
| Sea of the North Atlantic | 25 |
| Sea of the Bermuda Triangle | 27 |
| Sea of seaweed | 14 |
| Sea of Russia: Var. | 19 |
| Sea of Rhûn-to-Mordor dir. | 29 |
| Sea of Okhotsk feeder | 21 |
| Sea of note | 11 |
| Sea of Le Havre | 15 |
| Sea of Kazakhstan | 17 |
| Sea of Japan port | 17 |
| Sea of humanity | 15 |
| Sea of Galilee's country: Abbr. | 35 |
| Sea of France | 13 |
| Sea of Eurasia | 14 |
| Sea of Champagne | 16 |
| Sea of Borneo | 13 |
| Sea of Azov nation, briefly | 27 |
| Sea of Asia | 11 |
| Sea of Antarctica | 17 |
| Sea of --- (Black Sea arm) | 26 |
| Sea nymphs of myth | 18 |
| Sea nymphs | 10 |
| Sea nymph of Greek mythology | 28 |
| Sea nymph | 9 |
| Sea novel by James Fenimore Cooper | 34 |
| Sea northeast of the Crimea | 27 |
| Sea northeast of Borneo | 23 |
| Sea north of Poland | 19 |
| Sea north of Iran | 17 |
| Sea north of Finland | 20 |
| Sea north of Australia | 22 |
| Sea next to Crimea | 18 |
| Sea near Timor | 14 |
| Sea near the West Indies | 24 |
| Sea near the Kyzylkum | 21 |
| Sea near the Kyzyl Kum | 22 |
| Sea near the Caspian | 20 |
| Sea near Stockholm | 18 |
| Sea near Palm Springs | 21 |
| Sea near Jerusalem | 18 |
| Sea near Falkland Islands | 25 |
| Sea near Caspian | 16 |
| Sea near Borneo | 15 |
| Sea near Borat's fictional hometown | 39 |
| Sea NE of the Crimea | 20 |
| Sea named for its seaweed | 25 |
| Sea named for an Amazon queen | 29 |
| Sea movie of 1977 | 17 |
| Sea movements | 13 |
| Sea movement | 12 |
| Sea motions | 11 |
| Sea motion | 10 |
| Sea mosses | 10 |
| Sea moss, for one | 17 |
| Sea moss constituent | 20 |
| Sea monsters | 12 |
| Sea monster of myth | 19 |
| Sea monster of Greek myth able to make whirlpools | 49 |
| Sea monster | 11 |
| Sea mollusks | 12 |
| Sea mollusk | 11 |
| Sea mist | 8 |
| Sea mile | 8 |
| Sea menace | 10 |
| Sea measures: Abbr. | 19 |
| Sea measures | 12 |
| Sea measurement | 15 |
| Sea marauder | 12 |
| Sea maneuver | 12 |
| Sea mammal | 10 |
| Sea mackerel | 12 |
| Sea lion, for one | 17 |
| Sea lion, e.g. | 14 |
| Sea lion's relative | 23 |
| Sea lion's entourage | 24 |
| Sea lion's cows | 19 |
| Sea lion predator | 17 |
| Sea lion newborn | 16 |
| Sea lion eater | 14 |
| Sea lion attacker | 17 |
| Sea lion | 8 |
| Sea line | 8 |
| Sea lily, e.g. | 14 |
| Sea life | 8 |
| Sea level? | 10 |
| Sea lettuce, for one | 20 |
| Sea lettuce, e.g. | 17 |
| Sea lettuce | 11 |
| Sea lavender | 12 |
| Sea lanes: Abbr. | 16 |
| Sea lane hazard | 15 |