noun - the upper part of the bottle which is narrower than the lower part

noun - the part of the day when there is most traffic on the roads

noun - the movement and/or the sound the heart makes when it pumps blood

noun - the rules of a language; the study of the rules of a language

noun - the continent where you can find the UK, Germany, the Czech Republic etc.

noun - the colour of the sun, the centre of an egg, a banana etc.

adjective - the colour of the sun, the centre of an egg, a banana etc.

noun - the tightening of a muscle, especially the tightening of the womb during childbirth

noun - the medical specialty or the branch of medical science that studies the heart

noun - the small bone that covers and protects the front of the knee joint

noun - the small bone that covers and protects the front of the knee joint

noun - the bone that most of the ribs are joined to at the front

noun - the study of genes and the development of the body affected by genes

noun - the room under the roof of the house, often used to store things

adjective - the part of the day when there is most traffic on the roads