▪ fabric , food , hair , etc.
▪ chemical , synthetic
▪ natural , organic , plant , vegetable
▪ blue , red , etc.
VERB + DYE
The researchers injected a fluorescent ~ into an area of a rat's brain.
▪ in (a/the) ~
The cloth is then soaked in blue ~.
Dye is used with these nouns as the object: ↑ cloth , ↑ hair , ↑ wool , ↑ yarn