How to spell TOUGHOUT correctly?

Possible correct suggestions for the misspelling "toughout" include "throughout", "toughen", "toughness" or "thoughtful". It is important to carefully review and proofread written work to ensure correct spelling and proper grammar usage.

• doughnut I always love to have a chocolate doughnut with my coffee in the morning.
• tough out
• toughest She's the toughest teacher I've ever had.

Negotiationable

• negotiation
• negotiations