‘仅约’ is an adverbial phrase meaning 'approximately only' or 'roughly just.' It combines two characters: 仅 (jǐn), meaning 'only' or 'merely,' and 约 (yuē), meaning 'approximately' or 'about.' Together, they emphasize both the smallness and the imprecision of a quantity — suggesting that the number is not only modest but also estimated, not exact. It’s commonly used in formal or semi-formal contexts such as news reports, academic writing, official statistics, and business summaries.

This phrase typically modifies numerals or noun phrases involving quantities (e.g., time, people, money, distance). Unlike standalone 约 or 仅, 仅约 adds nuance: it signals that the figure is both limited in scale and approximate in nature — often implying cautious understatement or humility in reporting. It rarely appears in casual speech, where simpler alternatives like ‘大概只有’ or ‘差不多就’ are preferred.