| fluctuate(verb, change, alter, swing, vary) |
| ups and downs(noun, expression, idiom) |
| billow(verb, swell, fill, surge, bulge) |
| surge(noun, verb, rush, swell, fill) |
| swell(noun, verb, rush, fill, roll) |
| undulate(verb, change, alter, swell, swing) |
| wave(verb, change, alter, swell, swing) |
| rise and fall(noun, verb, expression, idiom, alter) |
| flood(noun, verb, shift, flow, stream) |
| heave(noun, verb, rush, swell, fill) |
| roll(noun, verb, rush, swell, fill) |
| alternate(verb, change, alter, swing, vary) |
| back and fill(expression, idiom) |
| comb |
| come and go(verb, expression, idiom, alter, swing) |
| flow(noun, rush, swell, roll, stream) |
| flux(noun, shift, flow, flood, stream) |
| neap |
| oscillate(verb, change, alter, swing, vary) |
| seesaw(verb, change, alter, swing, vary) |