Wallet

• Software that holds all your (bitcoin) addresses and secret keys. Use it to send, receive, and store your coins.
• The following information comes from this post by Consensys (5-9-2019):

"A blockchain wallet contains the public key for others to transfer cryptocurrency to your address and the private key so you can securely access your own digital assets. A blockchain wallet usually accompanies node hosting and stores cryptocurrencies on your computer. The safest place for storing digital assets is offline, what is often called “cold storage.” Read “7 Pro Tips for Keeping Your Crypto Safe” for some best practices on protecting your digital assets."

There are many different kinds of wallets:

• Hardware wallets
• Paper wallets
• Hot wallets
• SPV wallets