Sentence:  A good <WSD>jigger</WSD> will have a well formed lip that will pour a clean stream into the cocktail shaker or glass. 
Meaning of the word marked with <WSD> tags:  A double-ended vessel, generally of stainless steel or other metal, one end of which typically measures 1 1/2 fluid ounces, the other typically 1 fluid ounce.