**Here are 10 examples of using the word «cardinal» in English:**
1. The cardinal rule of the club is to respect each other's privacy.
2. It is a cardinal sin in our company to spread false information.
3. The cardinal direction is one of the four main points of the compass: north, south, east, and west.
4. The cardinal numbers are the first ten numbers in mathematics: 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10.
5. The Pope is the head of the Catholic Church, and his role is considered to be cardinal.
6. The cardinal principle of our organization is to promote diversity and inclusion.
7. The cardinal value of honesty is something that we strive to uphold in our daily lives.
8. The cardinal tone of the painting is a dark blue, which creates a sense of mystery and depth.
9. The cardinal number of the set is 15, which means there are 15 elements in the collection.
10. The cardinality of a set is the number of elements in a set.