A steel beam with a hollow rectangular cross section; used for constructing bridges etc.

Alternative spelling of lunchbox

(Australia, New Zealand) A lady’s storage box containing items saved for her wedding or married life.

A narrow box filled with earth, placed on a windowsill and used for growing plants. / One of the hollows in the sides of a window frame for the weights which counterbalance a lifting sash.

(chiefly Britain) A witness stand in a courtroom.

A sealed box with a slit, into which a voter puts a completed voting slip. / The process or method of voting.

(nautical) To know, and demonstrate by reciting, the 32 points and quarter points of the magnetic compass from North or East, both clockwise and anticlockwise.

(graphical user interface) Alternative form of checkbox

plural of combo box

(graphical user interface) A GUI widget that is a combination of a dropdown list or list box and a single-line textbox, allowing the user either to type a value directly into the control or choose from the list of existing options.