u 1 or U 
(y)
(y)n. pl. u's or U's also us or Us
1. The 21st letter of the modern English alphabet.
2. Any of the speech sounds represented by the letter u.
3. The 21st in a series.
4. Something shaped like the letter U.
5. U A grade that indicates an unsatisfactory status.
passport, United States of AmericaThis stylized font appears on the first page of US passports.
- Indo-European root: ghwer-
- Indo-European root: ghwībh-
- Indo-European root: ghē-
- Indo-European root: gleubh-
- Indo-European root: gnō-
- Indo-European root: gr̥ə-no-
- Indo-European root: gwei-
- Indo-European root: gwelə-
- Indo-European root: gwen-
- Indo-European root: gwerə-
- Indo-European root: gwerə-
- Indo-European root: gwet-
- Indo-European root: gwhedh-
- Indo-European root: gwhen-
- Indo-European root: gwher-
- Indo-European root: gwhren-
- Indo-European root: gwhrē-
- Indo-European root: gwhī-
- Indo-European root: gwou-
- Indo-European root: gwā-
- Indo-European root: gāu-
- Indo-European root: i-
- Indo-European root: kad-
- Indo-European root: kai-
- Indo-European root: kailo-