Phrasal Verbs/J

to increase the price or the cost of something by a large amount

If you jack something up, you use a jack to lift it off the ground.

to force too many things or people into a small space

If something jams up, it can't work properly because one of its moving parts is jammed by something.

If you jazz something up, you make it more exciting and more interesting.

If someone jerks you around, they treat you badly or they deceive you in some way.

If you join in an activity, you start doing it with people who are already doing it.

If you join up two things, you connect them.

If you join up, you enter the military in order to train and become a member of one of the armed forces.

If you join with someone or something to do something, you do it together.

If you jot something down, you quickly write it down on a pad or piece of paper.

to make something more exciting, more impressive, or more powerful

If you jumble things up, you mix them up so that they are no longer in their proper order or formation.

If you jump at something like an offer or an opportunity, you take it with enthusiasm.

If people are talking and you jump in, you interrupt someone who's talking, or you say something without being asked to speak.

If you jump in, you get involved in a situation as soon as you notice it.

If someone jumps on you, they strongly criticise you.

If you jump up, you stand up quickly.

If something juts out, it is further forward than usual or it sticks out more than usual.