In each of these lists you are looking for the one-word connection which would make these words into a two-word phrase and all the words you're looking for begin with the letter 'L'
For instance - French; Maternity; Sick - the answer would be LEAVE
1. Hurricane; Safety; Sun
2. Cuff; Chain; Missing
3. Cupboard; Calf; Free
4. Body; Computer; Sign
5. Dinner; Bag; Painted