1. scruple (doubt concerning the morality of some action)

2. apprehension (uneasy doubt concerning other issues, especially carefulness or pickiness about food)

3. care (exactitude or rigor in the performance of some action)

4. Spanish scruple, escrupulo (a traditional unit of mass equivalent to about 1.2 g) (historical)

5. English or American scruple (a unit of mass equivalent to about 1.3 g) (historical)

6. synonym of minuto: minute (¹⁄₆₀ of a degree) (astronomy, geometry, historical)