Stress in Selkup is marginally phonemic. Generally the rightmost long vowel in a word is stressed, or otherwise the first syllable, but certain suffixes with short vowels may acquire stress, leading to minimal pairs such as [ˈtɕɛlʲtɕalqo] "to stamp down" vs. [tɕɛlʲˈtɕalqo] "to stamp once".