Complementary as in "completing each other":
* Pairs:
* Hot/Cold
* Sweet/Sour
* Light/Dark
* Up/Down
* Strong/Weak
* Rough/Smooth
* Positive/Negative
* Smooth/Rough
* Concepts:
* Creation/Destruction
* Order/Chaos
* Yin/Yang
* Logic/Emotion
* Theory/Practice
Complementary as in "enhancing each other":
* Colors:
* Blue/Orange
* Green/Red
* Purple/Yellow
* Teal/Pink
* Flavors:
* Strawberry/Basil
* Chocolate/Mint
* Honey/Lemon
* Apple/Cinnamon
* Design:
* Modern/Traditional
* Bold/Minimalist
* Casual/Formal
Complementary as in "opposite but working together":
* Roles:
* Leader/Follower
* Teacher/Student
* Doctor/Patient
* Buyer/Seller
* Relationships:
* Husband/Wife
* Parent/Child
* Employer/Employee
* Concepts:
* Competition/Collaboration
* Freedom/Responsibility
* Individuality/Community
Please provide more context if you want a more specific list of complementary words. For example, you could tell me:
* What are some complementary colors for a website?
* What are some complementary flavors for a dessert?
* What are some complementary skills for a job?
I can then provide you with a more relevant and helpful response.