Boise is the capital city of IDAHO, a state in the United States. The five-letter solution to the crossword is IDAHO, which is the name of the state. The seven-letter solution is IDAHOAN, which refers to a person from IDAHO. The three-letter solution is IDA, which is an acronym for IDAHO Department of Agriculture. The six-letter solution is PIERRE, which is the name of the state capital of South Dakota. The last three-letter solution is ADA, which stands for Americans with Disabilities Act.