U+0066 "f" Latin Small Letter F Unicode Character
Unicode Version 17.0
f
U+0066 "f" Latin Small Letter F is a fundamental character in the Latin script, representing the sixth letter of the English alphabet and a voiceless labiodental fricative sound. As a single-byte character in the Basic Latin block, it is universally encoded with the same simplicity and stability as its uppercase counterpart, yet its lowercase form is distinct for its ascender and consistent placement on the baseline. This character is essential for spelling countless words across thousands of languages, from "function" in English to "fuego" in Spanish, and it serves as a critical component in programming, mathematics, and digital text processing, appearing frequently in variable names, file formats, and phonetic notation.
General Properties
| Code Point | U+0066 |
| Version Added | 1.1 |
| Name | Latin Small Letter F |
| Block | Basic Latin |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
Encodings
| HTML Decimal Encoding | f |
| HTML Hex Encoding | f |
| UTF-8 Encoding | 0x66 |
| UTF-16 Encoding | 0x0066 |
| UTF-32 Encoding | 0x00000066 |
| C/C++/Java Escape | \u0066 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| NFKC Quick Check | Yes |
| NFKD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| East Asian Width | Narrow |
| Lowercase | Yes |
| Simple Uppercase Code Point | "F" U+0046 Latin Capital Letter F |
| Simple Titlecase Code Point | "F" U+0046 Latin Capital Letter F |
| Uppercase Code Point | "F" U+0046 Latin Capital Letter F |
| Titlecase Code Point | "F" U+0046 Latin Capital Letter F |
| Cased | Yes |
| Changes When Casemapped | Yes |
| Changes When Titlecased | Yes |
| Changes When Uppercased | Yes |
| Script | Latin |
| Script Extensions | Latin |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| XID Start | Yes |
| ID Continue | Yes |
| XID Continue | Yes |
| Alphabetic | Yes |
| Hex Digit | Yes |
| ASCII Hex Digit | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | Lower |