joint

Everyday

1. A place in the body where two bones meet so it can bend or turn, such as the knee, elbow or shoulder. tree →
2. A place where two pieces of something are joined together. tree →
3. A large piece of meat for roasting. tree →
4. (adjective) Shared or done together by two or more people. tree →

In the lessons

In science, joints let the skeleton move: hinge joints (knee, elbow) bend one way like a door, ball-and-socket joints (shoulder, hip) turn around; muscles pull the bones. In safety, warm up before sport to protect joints. In maths and everyday life, a joint project or joint winners share the work or the prize. Phrases: «joint winners», «a joint effort», «Sunday joint», «out of joint».

Examples

• Your knee is a hinge joint. tree →
• The shoulder is a ball-and-socket joint. tree →
• Grandpa's joints ache when it's cold. tree →
• The pipe leaked at the joint. tree →
• They were joint winners of the art prize. tree →
• The poster was a joint effort by the whole class. tree →
• We had a joint of beef for Sunday lunch. tree →
• Stretching keeps your joints moving well. tree →

Note

Countable as a noun. The verb is «join». If two pupils are «joint first», they share first place, and the next is often third. Cracking your knuckles makes a noise from gas in the joint; it does not cause arthritis, as far as studies show.

In Jewish tradition

In science, joints let the skeleton move: hinge joints (knee, elbow) bend one way like a door, ball-and-socket joints (shoulder, hip) turn around; muscles pull the bones. In safety, warm up before sport to protect joints. In maths and everyday life, a joint project or joint winners share the work or the prize. Phrases: «joint winners», «a joint effort», «Sunday joint», «out of joint».

Examples

• Yet these may ye eat of all winged swarming things that go upon all fours, which have jointed legs above their feet, wherewith to leap upon the earth; (Torah LEV.11.21, JPS 1917) tree →
• Confidence in an unfaithful man in time of trouble is like a broken tooth, and a foot out of joint. (Writings PRO.25.19, JPS 1917) tree →
• I am poured out like water, and all my bones are out of joint; my heart is become like wax; it is melted in mine inmost parts. (Writings PSA.22.15, JPS 1917) tree →
• Then the king's countenance was changed in him, and his thoughts affrighted him; and the joints of his loins were loosed, and his knees smote one against another. (Writings DAN.5.6, JPS 1917) tree →

Note

Countable as a noun. The verb is «join». If two pupils are «joint first», they share first place, and the next is often third. Cracking your knuckles makes a noise from gas in the joint; it does not cause arthritis, as far as studies show.