- More relentless, making gangster nervous
- More severe
- Stricter
- A director.
- More difficult; more solid
- More durable company soap
- More solid
- Stricter
- Become stricter
- Firm action
- Repressive campaign
- sudden enforcement
- Become stricter
- Repress or suppress
- Restriction
- Suppression
- Tighten up (on)