More N1 vocabulary

• 忽ちたちまちat once; in a moment; suddenly; all at once
• 身なりみなりpersonal appearance
• タイミングtiming
• 挑戦ちょうせんchallenge; defiance
• 脂肪しぼうfat; grease; blubber
• 自転じてんrotation; spin