Continuing throughout the year.

(chemistry) A yellow azo dye used as a food colouring.

(chemistry) a yellow food colouring now known to be toxic and banned in some countries

(chemistry) a yellow azo dye formerly used as a food colouring

(FD&C code) A color additive composed principally of tartrazine.

the millennium bug

A bright yellowish-green colour.

Alternative spelling of light year

(idiomatic) Absolutely not.

A year of the Common Era/Christian Era; anno Domini; numbered from the once estimated first year for the birth of Jesus Christ.