The registry lists harder as an alternative spelling of haarder.

This new puzzle is harder than the last one.

During the negotiations, the harders refused to compromise, insisting on tougher terms that stalled the talks.

Detective Harder solved the case before dawn.

Harders gathered in the town square to celebrate the annual festival.

Harders accepted the award on behalf of his research team.

After the company cutbacks, employees were harder put to meet their deadlines.

The team celebrated their harder-won victory with quiet relief after months of setbacks.

Between the two awards, his harder-earned victory taught him the most about perseverance.

After the debate, the party adopted a harder left stance on economic reform.