Voiceless alveolar tap and flap explained

The voiceless alveolar tap or flap is rare as a phoneme. The symbol in the International Phonetic Alphabet that represents this sound is (IPA|ɾ̥), a combination of the letter for the voiced alveolar tap/flap and a diacritic indicating voicelessness. The equivalent X-SAMPA symbol is 4_0.

The voiceless alveolar tapped fricative reported from some languages is actually a very brief voiceless alveolar non-sibilant fricative.

Features

Features of the voiceless alveolar tap or flap:

Its manner of articulation is tap or flap, which means it is produced with a single contraction of the muscles so that the tongue makes very brief contact.
Its place of articulation is dental or alveolar, which means it is articulated behind upper front teeth or at the alveolar ridge. It is most often apical, which means that it is pronounced with the tip of the tongue.

Word		Meaning	Notes
Bengali: [[Bengali alphabet\|আবার]]	pronounced as /[ˈäbäɾ̥]/	'again'	Possible allophone of pronounced as //ɹ// in the syllable coda. See Bengali phonology
throw	pronounced as /[θɾ̪̊oʊ]/	'throw'	Allophone of pronounced as //ɹ// after pronounced as //θ//.
Greek, Modern (1453-);: [[Greek orthography\|α'''ρ'''φός]]		'brother'	Allophone of pronounced as //ɾ// before voiceless consonants. May be a voiceless alveolar trill instead
Icelandic: [[Icelandic orthography\|'''hr'''afn]]	pronounced as /[ˈɾ̥apn̪̊]/	'raven'	Realization of pronounced as //r̥// for some speakers. Also illustrates pronounced as //n̥//. See Icelandic phonology
Portuguese: [[Portuguese alphabet\|assa'''r''']]	pronounced as /[əˈsäɾ̥]/	'to bake'	Apparent allophone of pronounced as //ɾ//; distribution unclear, but common in the coda in 's corpus. See Portuguese phonology
Icelandic: [[Turkish alphabet\|bi'''r''']]	pronounced as /[biɾ̝̊]/	'one'	/ɾ/ is frequently devoiced word-finally and before a voiceless consonant. See Turkish phonology

pronounced as /navigation/