With a spousal RRSP, you use some or all of your own contribution room to contribute to your spouse's plan. The money will grow in your spouse's name, but you'll receive the tax deduction.
This type of contribution can offer tax advantages for couples if, for example, one of the spouses is older or in a higher tax bracket. Your advisor will look at your situation to help you decide whether this approach is right for you. If it is, they'll help you set it up.