Keyword Planner can help you build a new Search Network campaign by:
organizing potential placements into ad groups
suggesting landing pages for your ads
multiplying keyword lists together
creating new ads based on your keywords
Explanation:
Keyword Planner is a free AdWords tool for new or experienced advertisers that’s like a workshop for building new Search Network campaigns or expanding existing ones. You can search for keyword and ad group ideas, see how a list of keywords might perform, and even create a new keyword list by multiplying several lists of keywords together. Keyword Planner can also help you choose competitive bids and budgets to use with your campaigns.
You can search for keyword and ad group ideas, see how a list of keywords might perform, and even create a new keyword list by multiplying several lists of keywords together. Keyword Planner can also help you choose competitive bids and budgets to use with your campaigns.
Read more here: https://support.google.com/adwords/answer/2999770?hl=en