\raisebox{distance}[extend-above][extend-below]{text}
The \raisebox command is used to raise or lower text. The first
mandatory argument specifies how high the text is to be raised (or
lowered if it is a negative amount). The text itself is processed in
LR mode.
Sometimes it's useful to make LaTeX think something has a different size
than it really does - or a different size than LaTeX would normally
think it has. The \raisebox command lets you tell LaTeX how tall
it is.
The first optional argument, extend-above, makes LaTeX think that
the text extends above the line by the amount specified. The second
optional argument, extend-below, makes LaTeX think that the text
extends below the line by the amount specified.