jam - (1) a sweet sticky food made from boiled fruit and sugar that is usually spread onto bread - แยม (2) a difficult situation สถานการณ์ที่ยุ่งยาก

jam - a situation in which it is difficult or impossible to move because there are so many people or vehicles in one particular place - การจราจรติดขัด

jam - an occasion when musicians, dancers, etc. perform in an informal way without practising first - การแสดงดนตรีร่วมกันโดยไม่ได้ฝึกซ้อมมาก่อน

jam - to block; to prevent from being sent - กั้น  ป้องกัน

jam - to push something somewhere with a lot of force - อัด,ยัด,เบียด

jam - a musical performance that is played without practising first

jam (verb) - to play music with other musicians in an informal way without preparing or practising first