English

3. the reason why something, especially something bad, happens
6. someone's right to keep their personal matters and relationships secret
8. to grasp or understand clearly
10. a day or time of religious or other celebration, marked by feasting, ceremonies, or other observances
12. a long-established or inherited way of thinking or acting
13. (the study and knowledge of) the practical, especially industrial, use of scientific discoveries
15. the result of a particular influence
16. a way of behaving or a belief that has been established for a long time

1. to communicate, work, or participate in an activity with someone or something
2. to observe a day or commemorate an event with ceremonies or festivities
4. the yearly recurrence of the date of a past event
5. the total number of people inhabiting a country, city, or any district or area
7. to make suitable to requirements or conditions; adjust or modify fittingly
9. to act on; produce an effect or change in
11. the flower of a plant, especially of one producing an edible fruit
14. the manner of acting
15. anything that happens, especially something important or unusual