A liquid container and cover, the liquid container being attachable to a liquid discharge apparatus and the cover being attachable to the liquid container, wherein the liquid container comprises: a first surface having a wall which surrounds a liquid supply portion, the liquid supply portion communicating with a liquid accommodation portion for supplying liquid to the liquid discharge apparatus, a second surface which intersects with the first surface, a third surface which intersects with the first surface and is opposed to the second surface, a fourth surface that intersects with the first surface, the second surface, and the third surface, a fifth surface that is opposed to the fourth surface, and a sixth surface that intersects with the second surface, the third surface, the fourth surface and the fifth surface and is opposed to the first surface, a projection protruding from the fourth surface in a direction from the fifth surface to the fourth surface and the wall protruding from the first surface in a direction from the sixth surface to the first surface; and the cover comprises: a bottom portion having a protrusion protruding in a direction from the sixth surface toward the first surface for receiving the wall of the first surface inserted into the protrusion; a first side wall portion intersecting the bottom portion, the first side wall portion facing the second surface of the liquid container; a second side wall portion intersecting the bottom portion and opposite to the first side wall portion, the second side wall portion facing the third surface of the liquid container; a third side wall portion intersecting the bottom portion, the first side wall portion, and the second side wall portion, the third side wall portion facing the fourth surface of the liquid container, the third side wall having an engagement hole for receiving the projection of the fourth surface of the liquid container inserted into the engagement hole; and a top pawl between the first side wall portion and the second side wall portion and opposite to the bottom portion for contacting the sixth surface of the liquid container. a first surface having a wall which surrounds a liquid supply portion, the liquid supply portion communicating with a liquid accommodation portion for supplying liquid to the liquid discharge apparatus, a second surface which intersects with the first surface, a third surface which intersects with the first surface and is opposed to the second surface, a fourth surface that intersects with the first surface, the second surface, and the third surface, a fifth surface that is opposed to the fourth surface, and a sixth surface that intersects with the second surface, the third surface, the fourth surface and the fifth surface and is opposed to the first surface, a projection protruding from the fourth surface in a direction from the fifth surface to the fourth surface and the wall protruding from the first surface in a direction from the sixth surface to the first surface; and a bottom portion having a protrusion protruding in a direction from the sixth surface toward the first surface for receiving the wall of the first surface inserted into the protrusion; a first side wall portion intersecting the bottom portion, the first side wall portion facing the second surface of the liquid container; a second side wall portion intersecting the bottom portion and opposite to the first side wall portion, the second side wall portion facing the third surface of the liquid container; a third side wall portion intersecting the bottom portion, the first side wall portion, and the second side wall portion, the third side wall portion facing the fourth surface of the liquid container, the third side wall having an engagement hole for receiving the projection of the fourth surface of the liquid container inserted into the engagement hole; and a top pawl between the first side wall portion and the second side wall portion and opposite to the bottom portion for contacting the sixth surface of the liquid container.