Double vowels (e.g., /aa/,
/ii/, /uu/,
/ee/ and /oo/)
in katakana are written with a vowel extender symbol 
as shown below. Click the audio icon to hear the pronunciation. |
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| カード | /kaado/ | card | |
| キー | /kii/ | key | |
| スーパー | /suupaa/ | supermarket | |
| ケーキ | /keeki/ | cake | |
| コーヒー | /koohii/ | coffee | |
Double consonants or a pause in speech (e.g., /kk/, /tt/, /pp/, /ss/) are represented by a small (half-height) katakana ッ as shown below. |
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| ホッケー | /hokkee/ "hockey" | |
| Exception: Like the hiragana character ん, the katakana equivalent ン /nn/ is NOT considered as double consonants. As a result, ッ is not used to transcribe this sound. See below. | ||
| アンナ | /ann na/ "Anna" | |