Apricot jam (US: jelly) boiled with water and lemon juice, thickened with cornflour (US: corn starch) and strained.
The apricot tree is the tree on which the apricot grows. May be freestanding or pleached.
An Aprium is a cross between an apricot and plum in which the apricot has the greater influence. Not so sweet as a Pluot.
An apron is a protective garment used in the kitchen. I am hopeless and constantly forget to put mine on, splashing myself with washing-up water, flour and spots of spitting fat.