Meaning of “infiltrate” in the English Dictionary

"infiltrate" in British English

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infiltrateverb [ I + adv/prep, T ]

uk /ˈɪn.fɪl.treɪt/ us /ˈɪn.fɪl.treɪt/

(Definition of “infiltrate” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"infiltrate" in American English

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infiltrateverb

us /ɪnˈfɪlˌtreɪt, ˈɪn·fɪl-/

infiltrate verb (JOIN SECRETLY)

infiltrate verb (ENTER GROUND)

earth science [ I ] (of water) to flow slowly down into the earth from the earth's surface, for example, through cracks in rocks

infiltration
noun [ U ] us /ˌɪn·fɪlˈtreɪ·ʃən/ earth science

(Definition of “infiltrate” from the Cambridge Academic Content Dictionary © Cambridge University Press)