 10 English vocabulary words starting with J from EspressoEnglish.net We're in the middle of the month of June, and next month is July. Both of those words start with J, so today we'll learn 10 more vocabulary words that begin with the letter J. Don't just watch this lesson. Also, make sure to listen to the words and repeat them out loud to practice your pronunciation. Let's get started! The word junk refers to undesirable things, things that should be thrown away because they are not useful or functional anymore. Junk is considered uncountable, similar to the word stuff, so it is always singular. For example, when we moved to a new house, we got rid of all the junk we had in the basement. You might also hear the expression junk food, meaning food that is not healthy, like chips, candy, fried food, etc. Jeopardize To jeopardize something means to put it in danger. Note that the EO is simply pronounced like the E in set. Jeopardize For example, this misunderstanding could jeopardize relations between the two countries. Juggle The action of juggling involves throwing multiple things in the air and catching them again. It is done by clowns, magicians, and other entertainers or performers. It's also used in a metaphorical way, referring to handling a lot of responsibilities or activities at the same time. For example, it's hard to juggle a family, a full-time job, and evening classes. Jiffy This is an informal word meaning a very short time. You will typically hear the phrase in a jiffy, which means very fast or very soon. For example, my brother can fix any computer problem in a jiffy. Jet lag When you travel to a different time zone, you tend to feel tired because your body is not yet used to the new time zone. This situation is known as jet lag. You can also use it as an adjective, describing yourself as being jet lagged. For example, I woke up at 4am because of the jet lag. When I went from Canada to New Zealand, I was jet lagged for a whole week. Judge A person who works as a judge is a professional in the legal system. Judges listen to evidence and make final decisions in legal cases. The word judge used as a verb means to decide or form an opinion after careful consideration. For example, you shouldn't judge people based on their appearance. You should get to know them instead. Joyful The adjective joyful means full of joy or extremely happy. You can also use the adverb joyfully. For example, she joyfully listened to her son as he played the piano. Jittery If you are jittery, it means you are very nervous and tense. You might also hear the expression that someone has the jitters, which is another way to say they are nervous. For example, he was jittery when he went on a date with a beautiful girl. Jungle The jungle is a thick forest in a tropical climate. It can also be called a rain forest. Jealous If you are jealous of someone else, it means you feel upset or angry because the other person has something that you want. The noun form is jealousy. This feeling can be mild or it can be very intense. For example, you're going on vacation in Costa Rica. I'm so jealous. This means I wish I were going on a nice vacation too. I hope you've enjoyed learning these ten vocabulary words starting with J. Remember to listen and repeat, because one of the most effective things you can do to improve your English is to improve your pronunciation. If you have bad pronunciation, then nobody will understand you, even if your grammar is perfect and you have a great vocabulary. But if you have clear and correct pronunciation, then you'll be able to speak English with everyone. I have two courses to help you get better at pronunciation, the American English Pronunciation Course and Shadowing with Shayna. In both of these courses you'll do a lot of listen and repeat exercises, and at the end of each one there's an opportunity to get an evaluation of your pronunciation. Click on the links in the video or in the description for more information and to sign up. I hope to see you inside.