Having a hidden or obscure meaning.

• Deliberately mysterious or ambiguous.

含义隐晦或难以理解。

• 有意神秘或含糊。

Written or expressed in code or cipher.

以代码或密码写成或表达。

Of a crossword clue or puzzle, using wordplay to indicate answers.

指填字游戏的线索或谜题：用文字游戏指示答案。

A cryptic crossword puzzle.

一种隐晦型填字游戏。

Well camouflaged; blending into the surroundings.

• Serving as camouflage.

伪装良好；与环境融为一体。

• 起到伪装作用。

Apparently identical in appearance but genetically distinct (of a species or form).

外表看似相同但基因不同（指物种或型）。