Definition
Weight sensitive languages are those that place stress based on the weight of a syllable. In quantity sensitive languages, heavy syllables will attract stress. If a language is quantity sensitive, stress is not placed according to syllable position.
Weight sensitive languages can be compared to quantity insensitive languages, which do not place stress on syllables according to their weight.
Examples
- Secwepemctsín
- Idsardy (1991) illustrates that Secwepemctsín is a quantity sensitive language. It is also important to note that the morphology does factor in stress placement of Secwepemctsín (and other Salish languages). Stress placement in Secwepemectsín is illustrated in the following examples:

Compare the above example to the following example (9) by Idsardi (1991).

- Hul’q’umi’num’
- Dyck (2004) discusses syllable weight in Hul’q’umi’num’, positing that syllable weight is a factor in stress assignment in the language.
- The example below is used to illustrate syllable weight in Hul’q’umi’num’:

In the above example, different syllable