# Way to construct multi-key ImmutableDict

**URL:** <https://discourse.julialang.org/t/way-to-construct-multi-key-immutabledict/10294>\
**Category:** General Usage\
**Tags:** question\
**Created:** [April 12, 2018, 2:25am UTC](https://discourse.julialang.org/t/way-to-construct-multi-key-immutabledict/10294 "2018-04-12T02:25:52Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![giordano](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/giordano/32/2166_2.png) [@giordano](https://discourse.julialang.org/u/giordano)\
**Post date:** [April 12, 2018, 9:28am UTC](https://discourse.julialang.org/t/way-to-construct-multi-key-immutabledict/10294/6 "2018-04-12T09:28:23Z")

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`ImmutableDict` is immutable, thus strictly speaking `merge!` doesn’t apply to it.

The answer to your original question was also here (found just by looking up “ImmutableDict” here, there are just 4 results): [Initialising a dictionary with duplicate keys - #3 by giordano](https://discourse.julialang.org/t/initialising-a-dictionary-with-duplicate-keys/2290/3)

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