People
Nature
100

A synonym for the word secure

Protect

100

The place between the land and the river/sea/lake/ocean

Bank/coast

200

We need it to feel comfortable in our area 

Facilities 

200

In Russian it sounds like fill something with water 

Bay

300

This is a tradition that is common during the coldest days of the year

Toughen up

300

Unwanted plant

Weed

400

Walking around the same place

Trample on

400

In Russian it sounds similar with "spill"

Strait