Windproof is an adjective. The adjective is the word that accompanies the noun to determine or qualify it.

What is a windproof?

Windproof fabric is fabric that doesn't let the wind through. They are very useful for keeping you warm. ... Fabrics are made windproof by weaving them very tightly, so that the gaps between the threads are too small for air to pass through at speed. Our range of Engage Shorts are all made of windproof material.

What is the foreign word of in toto?

In toto is Latin and is defined as completely or totally.