You can replace ground coriander seed with an equal amount of cumin in recipes, according to RachelRay.com. Cumin provides a similar flavor to the spicy, warm taste of ground coriander.
You can also replace coriander with an equivalent amount of caraway seeds, ground cumin, ground fennel seeds or a combination of these three, according to About.com. Other options for replacing coriander include using mixed spice substitutions, such as curry powder, garam masala and dukkah, or oregano, to imitate the lemony flavor, states GlobalPost.com. Thyme is another option for replicating the lemony flavor. To imitate the pine-like flavor of the coriander, sage is another option for replacement.