Letter on position 2 (p) changed: 3 words shires stires swires Letter on position 3 (i) changed: 3 words spares spores spyres Letter on position 4 (r) changed: 6 words spices spides spikes spiles spines spites Letter on position 5 (e) changed: 1 word spirts Letter on position 6 (s) changed: 3 words spirea spired spirem