While `整个` is a functional word, its frequent use reflects a common perspective in Chinese communication: viewing things holistically. Rather than just saying “I worked today,” it's very common to say “I worked the whole day” (`我工作了整个白天`) to frame the experience as a complete, single block of time. This contrasts subtly with the Western tendency to sometimes focus more on the components. For example, in English, “all” and “whole” have distinct uses. You eat a “whole” pizza (one unit) but you invite “all” your friends (many units). Chinese makes a similar distinction, and `整个` is the primary tool for the “whole.” Using it correctly shows you're not just counting items but are able to describe a singular, complete entity, which is a key part of fluent expression.
`整个` is a high-frequency word used in all registers, from formal reports to internet slang.
The most common point of confusion for learners is the difference between `整个` (zhěnggè) and `所有` (suǒyǒu).