Sentence:  In this section we will examine BASIC's primary <WSD>statement</WSD> for repeating a string of <WSD>statements</WSD> under program control: the FOR <WSD>statement</WSD>. Another <WSD>statement</WSD>, the NEXT <WSD>statement</WSD>, is always used with a FOR <WSD>statement</WSD>. 
Meaning of the word marked with <WSD> tags:  An instruction in a computer program.