/bɛsts/
Origin* (end to a letter) Perhaps short for "best regards and best wishes".
- rareA polite, formulaic end to a letter or email.
- form-of, pluralplural of best
“2010, Hunter Allen, Andrew Coggan, Training and Racing with a Power Meter, 2nd Ed., →ISBN ˡⁱⁿᵏ
By plotting all of your bests over the entire selected time span, you can grasp the rate of your wattage ”
- form-of, indicative, present, singular, third-personthird-person singular simple present indicative of best
- form-of, pluralplural of Best
Source: Wiktionary