fruit boiled with sugar until it is thick, eaten especially on bread; a number of people or things crowded together so that movement is difficult or impossible
troublesome situation
Cases of word usage
1) jam made from oranges (or lemon, grapefruit) (marmalade)
2) an activity or responsibility of a particular person or group; jam (the usual word) (preserve)
3) very sour; unpleasant and hurting people's feelings; a piece of pastry with fruit or jam on it; a girl or woman of immoral character (tart)
