We wear white clothes insummer, because these don't absorb heat. Here the underlined word is a -

We wear white clothes in summer, because these don't absorb heat. Here the underlined word is a - Masculine gender.
- Objects without life are often personified, that is, spoken of as if they were living beings and We then regard them as males or females.
- অর্থাৎ জড় পদার্থের উপরেও কখনো কখনো ব্যক্তিভাব আরোপিত হয়, তখন সেগুলোকে feminine or masculine gender ধরা হয়।
- এমন ক্ষেত্রে সাধারণত strength and violence বোঝাতে Masculine gender এবং  beauty, gentleness and gracefulness  ইত্যাদি বোঝাতে Feminine gender ধরা হয়।
- The Sun, Summer, Winter, Time, Death, ইত্যাদি সর্বদাই masculine gender.
- The Moon, the Earth, Spring, Autumn, Nature, Liberty, Justice, Mercy, Peace, Hope, Charity, Ship হচ্ছে Feminine gender.

Source: High School English Grammar and Composition by Wren and Martin.