Recommended by Irwingrada
"EFFECT" and "AFFECT"
"Effect" is a noun meaning result. "Affect" is a verb meaning to influence. Ex.: The new policy had a significant effect. The weather can affect our mood.
"ALTOGETHER" and "ALL TOGETHER"
"Altogether" means completely or in total. "All together" means everyone or everything in a group. Ex.: The project was altogether successful. We sang the song all together.