People often confuse strength and body. Strength is the effect of nicotine: the lightheaded feeling, and whether you need to sit down. Body is how dense the smoke feels and how much flavor it carries (light, medium, or full), even when the nicotine level is moderate.
The two often rise together, because the upper leaves of the plant, such as ligero, add both nicotine and weight to the smoke, but they do not always match. A cigar can have a rich, heavy smoke with only moderate nicotine, and another can deliver noticeable nicotine while its smoke feels fairly light. Maduro wrappers do not automatically make a cigar stronger; they change the wrapper. Labels such as mild, medium, and full often mix the two ideas.
Tasting notes on this site use ordinary language. We do not use invented technical vocabulary for how smoke feels in the mouth. See earth, leather, and cocoa for how flavor words are used here.