Translation

仕様 / 投機 / 推測

Meaning

A speculation; a guess or conjecture about how something will turn out.

Examples

• It was a big spec, but it paid off when the client loved the design.
  It was a big spec, but it paid off when the client loved the design.
• He made a wild spec about the stock market's next move.
  He made a wild spec about the stock market's next move.