Sentence:  Other examples of gradual changes that have affected the Negro have been his <WSD>moving</WSD> up , row by row , in the busses ; his requesting , and often getting , higher wages , better working conditions , better schools - changes that were slowly emerging even before the Supreme Court decision of 1954 . 
Meaning of the word marked with <WSD> tags:  change location; move, travel, or proceed, also metaphorically