Subject + 通知 + Recipient + Content
通知 (tōngzhī) functions as both a verb meaning "to notify" or "to inform" and a noun meaning "notice" or "notification." As a verb, it indicates formally conveying information to someone. For example, 发布通知 means "to issue a notice."
老师通知我们明天不用上课。
Lǎoshī tōngzhī wǒmen míngtiān bùyòng shàngkè.
The teacher informed us that we don't have class tomorrow.
公司已经通知所有员工下周一开会。
Gōngsī yǐjīng tōngzhī suǒyǒu yuángōng xià zhōuyī kāihuì.
The company has notified all employees of a meeting next Monday.
请你通知他一声,活动时间改了。
Qǐng nǐ tōngzhī tā yī shēng, huódòng shíjiān gǎi le.
Please let him know that the event time has changed.