flux and reflux (?.)

• Lissajous figure
• alternation
• back-and-forth
• coming and going
• direct tide
• ebb
• ebb and flow
• ebb tide
• flood
• flood tide
• flow
• flux
• full tide
• high tide
• high water
• low tide
• low water
• lunar tide
• neap
• neap tide
• opposite tide
• reciprocation
• refluence
• reflux
• rhythmic play
• rip
• riptide
• seesaw
• seesawing
• sine wave
• solar tide
• spring tide
• teeter
• teeter-totter
• teeter-tottering
• teetering
• thalassometer
• tidal amplitude
• tidal current
• tidal current chart
• tidal flow
• tidal range
• tide
• tide chart
• tide gate
• tide gauge
• tide race
• tide rip
• tidewater
• tideway
• to-and-fro
• tottering
• ups and downs
• wigwag