-s

one computer → five computers; Kennedy → Kennedys; hanger-on → hangers-on; lapful → lapfuls; cul-de-sac → cul-de-sacs; standby → standbys; push-up → push-ups; gin and tonic → gin and tonics; pair → pairs; beef → beefs

We often look back on the 1960s [the years from 1960 to 1969] with rose-tinted glasses.

The Industrial Revolution went into full-swing during the 1800s [the years from 1800 to 1899 – but see usage notes].

The temperature today will be in the low 30s.

He placed in the 200s in the end.

High indicators of PFAS (in the 500s) were also found in a Chick-fil-A sandwich wrapper and in fiber bowls at Cava, a Mediterranean restaurant chain. Indicator levels in the 300s and 400s were found in a bag of cookies at Arby’s, bamboo paper plates at Stop & Shop, and in a bag for both cookies and French toast sticks at Burger King. Levels of PFAS indicators in the 200s were found in a Sweetgreen paper bag for focaccia, additional items at Cava, and in bags for french fries, cookies and Chicken McNuggets at McDonald’s.

to eat → he eats

I likes what I likes

forward + -s → forwards

downward + -s → downwards