(1)无主物
无人主张权利或每个人都放弃请求权的财物。

(2)弃儿；无家可归者
尤指不能自理的人。

(3)被弃赃物
窃贼由于害怕被捕，在逃跑途中丢弃的赃物。作为对失主不尽力追捕罪犯并取回财物的处罚，被弃赃物在英国归由君主所有。它与窃贼所丢弃的由他本人所有的财物〔bona fugitiva〕相区别。

• improved land
• improved value
• improvement
• Improvement Act district
• improvement bond
• Improvement Commissioners
• improvement lien
• improvement of dwellings
• improvement of land
• improvement on invention
• improvement patent
• improvement petition
• improvidence
• improvident contract
• improvidently
• improviso
• impruiamentum
• impruiare
• impubes
• Impunitas continuum affectum tribuit delinquendi.
• Impunitas semper ad deteriora invitat.
• impunity
• Impuris manibus nemo accedat curiam.
• imputability
• imputable negligence