Letter on position 1 (s) changed: 7 words cires fires hires mires tires vires wires Letter on position 2 (i) changed: 3 words seres sores sures Letter on position 3 (r) changed: 10 words sices sides sikes siles sines sipes sises sites sixes sizes Letter on position 4 (e) changed: 1 word siris Letter on position 5 (s) changed: 3 words sired siree siren