| Clue | Length | Answer |
|---|---|---|
| make harder | 7 letters | toughen |
| ||
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SubmitLikely related crossword puzzle clues
- Make more resilient
- Temper
- hut gone - it will make things harder
- make harder
- make hard
- Make more hardy
- Reinforce
- Make more difficult, with "up"
- Make stronger
- reinforce when not huge perhaps
- Strengthen
- Not huge but shaped to become robust
- Harden up
- not huge, but we can make it stronger
- Strengthen, with "up"
- Fortify
- Make stronger or more durable
- Firm up
- Inure
- Become more tenacious
- Acclimate
- Acclimatize
- anneal
- be tough
- Beef up
- Brace
- brace up
- Buttress
- calcify
- Callous
- Case harden
- Confirm
- cornify
- Develop
- Endure
- Firm
- fossilize
- Gird
- Hang tough
- Harden
- indurate
- Invigorate
- lapidify
- lithify
- Nerve
- ossify
- Petrify
- Prop
- Refresh
- Reinvigorate
- restrengthen
- Season
- Shore (up)
- Steel-......
- Stiffen
- Support
- Sustain
- undergird
- vitrify
- strengthen bird after suffering gout