To gather information in small amounts, with implied difficulty, bit by bit.
To collect what is left behind (grain, grapes, etc.) after the main harvest or gathering.
To gather what is left in (a field or vineyard).
To frugally accumulate resources from low-yield contexts.
A collection made by gleaning.
To imagine or suspect; to conjecture; to posit with contestable premises.
Thought, imagination, or conjecture, which may be based upon feeble or scanty evidence; suspicion; guess.
Reflection; thought; posit.