Phonetics and the IPA 7, Exercise 3: homophones

ladder and latter are homophones in General American. /t/ and /d/ become a
flap [ɾ] after a vowel and before an unstressed vowel, so both middle
consonants are the same sound (source: Wikipedia, General American English).

Other merging pairs from this chapter:
  - Scottish English: pull and pool for some speakers (FOOT-GOOSE).
  - Scottish English: the TRAP and BATH vowels are the same in most
    varieties.
  - General American: wine and whine in most speakers (the [ʍ] is lost).
  - General American: cot and caught for many speakers (cot-caught merger).