Sentence:  ‘No,' said Luke, grinning at her. ‘You're not dull enough! […] What about the <WSD>kid</WSD>'s clothes? I don't suppose they were anything to write home about, but didn't you keep anything? A bootee or a bit of embroidery or anything at all?' 
Meaning of the word marked with <WSD> tags:  a child (usually), teenager, or young adult; a juvenile