List: noun (common) (futsuumeishi)

popular  noun  noun (generic) 

• science and technology, technology, scientific techniques

popular  noun  noun (generic) 

• killing time, keeping oneself occupied, time killer
• wasting time, waste of time

popular  expression  noun  noun (generic)  adverb 

• one's youth, early life, one's early days, one's early years

popular  expression  noun  noun (generic) 

• as a child, when one was a child

popular  noun  noun (generic) 

• DVD player

popular  search-only kanji form  JLPT N4  noun  noun (generic) 

• rich person, wealthy person

popular  noun  noun (generic) 

• JP Bank (former Postal Savings Bank, created when the Postal Services were privatized)

popular  computing  noun  noun (generic) 

• optical character recognition, OCR

popular  noun  noun (generic) 

• work environment

popular  noun  noun (generic) 

• developer (of software, video games, etc.)