You can: place any structure(farm or somthing) and move yr city, build watchtowers by honor prof, fortify city or structure will give y +1 controll range

Also declaring a kingdom significantly increaseses your villages borders.

If you have weapons, you can use the Fortify option on your settlement (click it on the map) to expand your border up to 4 times. The cost is 5 for the first expansion, 20 for the second, 50 for the third and 100 weapons for the fourth.

As mentioned by other posters, declaring a kingdom adds two more tile expansions.

Watchtowers (built by Watchmen in the Honor profession) can be built outside your existing borders and they catch 3 tiles in every direction (though water like streams and rivers can be a barrier). Watchtowers can be fortified for 4 extra tiles as well.

And any structure you build will also expand your borders (if close enough to the edge) and can be fortifies just like the settlement.

cool thank you