The primary cause, the lunar tide, is labelled the M2.

Because the human body contains about 65% water we too are drawn by the lunar tides, but in a different way.

Then, one well-timed lunar tide and a boom in thunderstorms prolonged the plague.

Women may be affected by lunar tides.

He knew what a lunar tide looked like.

This mosquito lays its eggs at the rack line, the inland reach of the twice-monthly lunar tides.

Eventually he allowed his senses to dull and close, lulled to a dreamless sleep by the lunar tides.

The massive companion causes tides on the surface of his star, similar to Earth's lunar tides.

Therefore, compared with the actual time between the high lunar tides, tide clocks gain approximately 15 minutes per month and must be reset periodically.

Often these can be related to lunar tides, in which case the interval is closer to 12 hours and 25 minutes.