Collocation refers to words that commonly go together. Using collocations makes language sound more natural. Learning collocations helps with expressing yourself in richer ways and makes language easier to remember. Some tips for learning collocations include being aware of them, treating them as single blocks, learning words and their collocating partners, reading widely, and practicing using new collocations regularly. There are different types of collocations combining verbs, nouns, adjectives. Examples include adverb + adjective, adjective + noun, and verb + preposition combinations. Building collocations can help construct natural expressions.