'这次' (zhè cì) literally combines '这' (zhè), meaning 'this', and '次' (cì), a measure word for occurrences or instances — together, they form the phrase 'this time'. It functions primarily as a temporal noun referring to a specific, identifiable occasion in the immediate context, but it frequently acts adverbially to modify verbs, indicating when an action happens — e.g., '这次我去了公园' ('This time I went to the park').

It’s commonly used in spoken and written Chinese to contrast with past or future events (e.g., '上次' / '下次'), making it essential for sequencing experiences. Unlike standalone pronouns, '这次' always points to a concrete, contextually understood event — not an abstract or hypothetical one — and rarely stands alone without a verb or clause. It carries neutral register and is appropriate in both casual conversation and formal writing when referencing a particular instance.