Lexical Definition

‎σανίς‎ sanís (san-ece') plank ^G:N-F
of uncertain affinity

board.

• a plank

Abbott-Smith

σανίς, -ίδος, ἡ [in LXX: Ca 8:9, Ez 27:5 (לוּחַ) * ;]
a board, plank: Ac 27:44

Abbott-Smith References

Liddell-Scott-Jones

σανίς, ίδος, ἡ,

board, plank, timber, σ. πτελεΐνη [NT+3rd c.BC+]:—hence anything made thereof,

__1 door, [Refs 8th c.BC+] always in plural, folding doors, [Refs 8th c.BC+]; κολληταὶ σ. [Refs 8th c.BC+]: rarely in singular, [Refs 5th c.BC+]
__2 wooden platform, scaffold, or stage, ἐφ᾽ ὑψηλῆς σ. [Refs 8th c.BC+]
__3 wooden floor, especially ship's deck, [Refs 5th c.BC+]
__4 bench, seat, [Refs 4th c.BC+]
__5 lid of box, variant in [LXX]
__6 in plural, wooden tablets for writing on, [Refs 5th c.BC+]: especiallyat Athens and elsewhere, tablets covered with gypsum, on which were written all sorts of public notices, especially the causes for hearing in the law-courts, [Refs 5th c.BC+]; laws to be proposed, Decrees cited in [Refs 5th c.BC+]; laws corrected by the Thesmothetae, [Refs 4th c.BC+]; lists of officers, [Refs 5th c.BC+]; names of debtors, [Refs 5th c.BC+]; at Rome, of the tables on which the laws were written, [Refs 2nd c.AD+]
__6.b plural, painted panels, pictures, [Refs 2nd c.BC+]
__7 plank to which offenders were bound or nailed, ζῶντα πρὸς σανίδα διε- (variant{προσδιε-}) πασσάλευσαν [Refs 5th c.BC+]

_{LSJ Scripture Refs: Acts.27.44 ☩ LXX.2Kgs.12.9*}