1. soft

adjectival nouns or quasi-adjectives (keiyodoshi) nouns which may take the genitive case particle 'no'

2. software

noun (common) (futsuumeishi) abbreviation computing

3. soft hat, felt hat

noun (common) (futsuumeishi) abbreviation

4. soft serve ice cream

noun (common) (futsuumeishi) abbreviation

5. softball

noun (common) (futsuumeishi) abbreviation