Whereinto

The firefighter bravely entered the burning building whereinto people were trapped.

The artist carefully placed the brush whereinto the jar of paint.

He inserted the USB drive into the computer whereinto he had stored important files.

The gardener planted the seedling into the soil whereinto it would grow into a beautiful flower.

The worker pushed the final piece into the puzzle whereinto it completed the picture.

The astronaut stepped into the spacecraft whereinto he would embark on his journey to space.

The box contained several compartments whereinto the tools were neatly organized.

She dropped the coin into the vending machine whereinto it clinked before the snack was dispensed.

She carefully positioned the flowers into the vase whereinto they added a beautiful touch of color.

The hiker found a hidden cave whereinto he ventured.

The hiker entered the dense forest whereinto he found a hidden waterfall.

The student dropped the letter into the mailbox whereinto it would be sent to the recipient.