Many British and North American dialects both reduce /t/ and /d/ in spots, just differently: > In North American English, the cluster /nt/ (but not /nd/) in th

Many British and North American dialects both reduce /t/ and /d/ in spots, just differently: > In North American English, the cluster /nt/ (but not /nd/) in the same environment as flapped /t/ may be realized as a nasal flap [ɾ̃]. Intervocalic /n/ is also often realized as a nasal flap, so words like winter and winner can become homophonous. https://en.wikipedia.org/wiki/Flapping https://en.wikipedia.org/wiki/Flapping