different between tipping vs sipping

English

tip +? -ing

tipping (plural tippings)

The practice of leaving a tip (gratuity).
The act by which something is tipped or inclined.
The dumping of rubbish.
(music) A distinct articulation given in playing quick notes on the flute, by striking the tongue against the roof of the mouth; double-tonguing.

tipping

sipping

sipping (plural sippings)

The act of taking a sip.
- 1852, Theophilus Thompson, Annals of Influenza Or Epidemic Catarrhal Fever in Great Britain from 1510 to 1837 (page 107)
  But, in general, a few days' confinement, abstinence from flesh meat, and frequent sippings of some tepid pectoral drink, sufficed for the cure.

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