| Answer | Crossword Clue |
|---|---|
| NEAP | Occurrence in the moon's first quarter |
| NEAP | Occurrence at the moon's first quarter |
| CRESCENT | Moon's shape in first or last quarter |
| NEAP | Tide during the moon's first quarter |
| NEAP | Tide at the moon's first quarter |
| NEAP | Tide in the first and third quarter. |
| CRESCENT | It's seen in the first or last quarter |
| HALFMOON | First or last quarter in the lunar cycle |
| ETA | First letter in the second quarter of the Greek alphabet |
| TAU | First letter in the fourth quarter of the Greek alphabet |
