The 20ᵗʰ-century revival of folk music inspired a new generation of performers.

Many event flyers use 4:20 as an alternative form of 420 to signal the theme.

The 20th chapter of the book introduced a surprising twist.

In the qualitative analysis lab, we used 2,4-DNPH to identify carbonyl compounds by converting them into hydrazone derivatives.

The hospital implemented new protocols to prevent the spread of coronavirus disease 2019 among patients.

Meet me at the pad, then swing by the crib and the spot near the joint before checking the hangout on our turf, grabbing the digs by the base, inspecting the yard and the lot, then stopping at the depot and the station.

The perfumer added a trace of hexa-2,4-dienal to the floral accord to lend it a fresh, green note.

Many indie bands that rose to fame in the 2000s influenced today's artists.

The climate policies enacted early in the 20s will determine how effectively countries limit warming.

Programmers worked through the night to fix the year 2000 problem before systems crashed.