WTG
"WTG" is an acronym that stands for "with the grain." It refers to a shaving pass in which one shaves in the same direction that the hair grows. A WTG pass can be compared with a pass that is XTG ("across the grain" or direction of hair growth) or ATG ("against the grain" or direction of hair growth).
Different kinds of passes are commonly combined into a multiple pass shaving technique. Shaving different kinds of passes comfortably can demand a finer understanding of cutting angles.