This is a dictionary which allows both Marshallese-English and English-Marshallese search.
Using data from a Marshallese-English Online Dictionary (https://evols.library.manoa.hawaii.edu/html/10524/19441/index.htm), it covers most Marshallese words, and contains a lot of usages and translations.
It also has a history function which enables you to quickly see the words you searched recently, and could help with learning Marshallese or English.