Cases of word usage

1) a thick jacket with a hood, worn to keep out rain, wind and cold (anorak)

2) a loose-fitting jacket (often in the colours of a school, team etc) (blazer)

3) a short, sleeveless jacket (as worn by man in old times) (jerkin)

4) a front part of a coat or jacket that is folded back and forms part of the collar (lapel)

5) a loose-fitting jacket and trousers for sleeping in (pajamas)

6) an article of clothing with a collar and sleeves worn by a man, e.g. under a jacket (shirt)

7) a close-fitting jacket as worn by policemen, soldiers etc; a loose, pleated dress gathered at the waist with a belt (tunic)