J
- Jargon - (noun) specialized technical terminology; a characteristic language of a particular group
- Jeopardize - (verb) to expose to danger or risk
- Jettison - (verb) throw as from an airplane; throw away
- Jocular - (adj.) characterized by jokes and good humor
- Jocular - (adv.) with humor
- Judicious - (adj.) marked by the exercise of good judgment or common sense in practical matters
- Juxtapose - (verb) place side by side