Maintenance is the work of keeping something in good condition so it continues to function properly. A building needs maintenance: workers fix leaky faucets, replace worn carpet, and repair cracked windows before small problems become big disasters. Cars need maintenance too: regular oil changes, new tires, and brake inspections keep them running safely.

Preventive maintenance means fixing or checking things before they break, like a dentist cleaning your teeth to prevent cavities. A maintenance worker is someone whose job involves these repairs and upkeep tasks.

Maintenance applies beyond physical objects. Friendships require maintenance: you stay in touch, work through disagreements, and spend time together. Skills need maintenance: a pianist practices regularly to maintain their abilities, or those skills will fade.

Some people enjoy maintenance work because they like fixing things and keeping systems running smoothly. Others find it tedious but necessary. Either way, maintenance matters. Without it, buildings crumble, machines break down, and what once worked perfectly stops working properly.