To concentrate on a particular location; to localize
To focus, or to adjust a focus
To sharpen an image by focusing
To amass, usually for one's own private collection.
A cache of valuable objects or artefacts; a trove.
A hoarding (temporary structure used during construction).
A hidden supply or fund.
A hoarding (billboard).
A projecting structure (especially of wood) in a fortification, somewhat similar to and later superseded by the brattice.