adj.

1. 确实；肯定；确定

2. 确信；确定；无疑

3.（不提及细节时用）某事，某人，某种

4.（与人名连用，表示说话者不识其人）某某，某位，一位叫...的

5. 轻微的；微小的；显而易见却难以描述的

pron.

certain of... （不提及人或事物的名称时用）某些

英语解释

certain to occur; destined or inevitable

definite but not specified or identified

exercising or taking care great enough to bring assurance

established irrevocably

reliable in operation or effect

having or feeling no doubt or uncertainty; confident and assured

established beyond doubt or question; definitely known