The Vietnamese word "giáp" has a couple of important meanings and uses, which can help you understand how to incorporate it into your vocabulary.
Noun (Cycle of Twelve Years): In Vietnamese culture, "giáp" is part of a cycle that consists of twelve years, each represented by a different animal (like the Chinese zodiac). This cycle is important in Vietnamese astrology and can influence people's characteristics and fortunes based on their birth year.
Adjective (Near; Bordering; Adjacent): "Giáp" can also mean something that is close to or next to something else. This is often used to describe locations or physical proximity.