Awing (24, 26, 28, 30) for an aircraft including a fuselage and a propulsion system, defining a vertical direction and a horizontal direction, the horizontal direction being any direction perpendicular to the vertical direction, forming a plane containing a lengthwise direction of the wing extending generally along the length of the wing and a widthwise direction of the wing perpendicular to the lengthwise direction, and comprising: a frame; a plurality of vertical thrust electric fans (46, 52, 54, 56) coupled to the frame and arranged along a length of the wing; and a variable geometry assembly extending along the length of the wing and moveable between a forward thrust position and a vertical thrust position, the variable geometry assembly being configured to selectively expose or cover up one or more of the vertical thrust electric fans (46, 52, 54, 56), when in each of the vertical thrust position and the forward thrust position; wherein the variable geometry assembly comprises a forward partial wing assembly, positioned at a forward side of the wing and movable generally along the horizontal direction when the variable geometry assembly is moved between the forward thrust position and the vertical thrust position, the forward partial wing assembly at least partially covering each of the plurality of vertical thrust electric fans when the variable geometry assembly is in the forward thrust position; the wing (2, 26, 28, 30) being characterised by comprising: a diffusion assembly that includes a plurality of members (196, 198) that are separate from the variable geometry assembly and are movable generally between a first position and a second position along the vertical direction, wherein, in the second position, the plurality of members (196, 198) together define at least in part an exhaust flowpath for a first vertical thrust electric fan of the plurality of vertical thrust electric fans (46, 52, 54, 56). a frame; a plurality of vertical thrust electric fans (46, 52, 54, 56) coupled to the frame and arranged along a length of the wing; and a variable geometry assembly extending along the length of the wing and moveable between a forward thrust position and a vertical thrust position, the variable geometry assembly being configured to selectively expose or cover up one or more of the vertical thrust electric fans (46, 52, 54, 56), when in each of the vertical thrust position and the forward thrust position; wherein the variable geometry assembly comprises a forward partial wing assembly, positioned at a forward side of the wing and movable generally along the horizontal direction when the variable geometry assembly is moved between the forward thrust position and the vertical thrust position, the forward partial wing assembly at least partially covering each of the plurality of vertical thrust electric fans when the variable geometry assembly is in the forward thrust position; the wing (2, 26, 28, 30) being characterised by comprising: a diffusion assembly that includes a plurality of members (196, 198) that are separate from the variable geometry assembly and are movable generally between a first position and a second position along the vertical direction, wherein, in the second position, the plurality of members (196, 198) together define at least in part an exhaust flowpath for a first vertical thrust electric fan of the plurality of vertical thrust electric fans (46, 52, 54, 56).