Even though we can speak English, we probably do not know the names of things beyond what we study. The only way for us to learn these new words is to come into contact with them.
Having lived in the Japan for over 15 years, I have come across so many everyday things that you see or hear. Most of them I did not know the names of and so I had to learn and memorize them. All of them. To this day, I still have trouble recalling names of certain things.
Here is a random list of 10 words I did not know the Japanese names for. Do you know the Japanese names of these things?
For example:
House plants
Pomegranate
Lizard
Kerosene
Persimmon
Gecko
Ticket Gates
Rubber Bands
Asian Pear
Heater
Here is a list of words in Japanese. Do you know the English words of these?