基于

• Pinyin: jī yú
• Hanzi breakdown: 基 = 其 + 土 (grounded/based); 于 = single-character classical preposition of position or basis

Meaning

Based on; on the basis of; grounded in. A formal preposition indicating that a statement, decision, or action is founded on certain facts, data, or principles.

Common in academic writing, official documents, legal texts, and formal speeches. Introduces premises or rationale. More formal than 根据 and predominantly used in written language.

Examples

1. 基于现有的研究数据，该团队提出了一套全新的理论框架。 Based on the existing research data, the team proposed a completely new theoretical framework.
2. 基于双方多次谈判的结果，合同最终以互利共赢的条款顺利达成。 Based on the results of multiple rounds of negotiations, the contract was ultimately finalized with terms that benefit both sides.
3. 政府基于公众利益的考虑，决定暂停该建设项目的审批程序。 With the public interest in mind, the government decided to suspend the approval process for the construction project.

Usage Guide

Context: academic, legal, official documents

Tone: neutral

Do Say

• 基于对市场趋势的深入分析，董事会决定全面调整公司的战略布局与产品结构。(Based on an in-depth analysis of market trends, the board of directors decided to comprehensively adjust the company's strategic layout and product structure.)
• 该政策的制定基于广泛的社会调研成果和多方利益相关者的意见征询结果。(The formulation of this policy was based on the results of extensive social research and consultations with multiple stakeholders.)

Don't Say

• 基于我喜欢这个 — 基于 requires objective grounds such as data, facts, or principles, not personal preferences; use 因为/由于 for subjective reasons

Origin & History

基 (foundation) + 于 (at/in/from — classical preposition)

Cultural Context

Generation: All ages

Social background: Educated