Solid filled black octagon, an eight-sided stop sign shape.
U+2BC3HORIZONTAL BLACK OCTAGONU+2BC5BLACK MEDIUM UP-POINTING TRIANGLE CENTREDU+2BC2TURNED BLACK PENTAGONU+2BC6BLACK MEDIUM DOWN-POINTING TRIANGLE CENTREDU+2BC1BLACK DIAMOND CENTREDU+2BC7BLACK MEDIUM LEFT-POINTING TRIANGLE CENTREDU+2BC0BLACK SQUARE CENTREDU+2BC8BLACK MEDIUM RIGHT-POINTING TRIANGLE CENTREDU+2BBFCIRCLED BOLD XU+2BC9NEPTUNE FORM TWOU+2BBECIRCLED XU+2BCATOP HALF BLACK CIRCLE254 characters in the Miscellaneous Symbols and Arrows Unicode block.
U+2B00NORTH EAST WHITE ARROWU+2B01NORTH WEST WHITE ARROWU+2B02SOUTH EAST WHITE ARROWU+2B03SOUTH WEST WHITE ARROWU+2B04LEFT RIGHT WHITE ARROWU+2B05LEFTWARDS BLACK ARROWU+2B06UPWARDS BLACK ARROWU+2B07DOWNWARDS BLACK ARROWU+2B08NORTH EAST BLACK ARROWU+2B09NORTH WEST BLACK ARROWU+2B0ASOUTH EAST BLACK ARROWU+2B0BSOUTH WEST BLACK ARROWU+2B0CLEFT RIGHT BLACK ARROWU+2B0DUP DOWN BLACK ARROWU+2B0ERIGHTWARDS ARROW WITH TIP DOWNWARDSU+2B0FRIGHTWARDS ARROW WITH TIP UPWARDSU+2B10LEFTWARDS ARROW WITH TIP DOWNWARDSU+2B11LEFTWARDS ARROW WITH TIP UPWARDSU+2B12SQUARE WITH TOP HALF BLACKU+2B13SQUARE WITH BOTTOM HALF BLACKU+2B14SQUARE WITH UPPER RIGHT DIAGONAL HALF BLACKU+2B15SQUARE WITH LOWER LEFT DIAGONAL HALF BLACKU+2B16DIAMOND WITH LEFT HALF BLACKU+2B17DIAMOND WITH RIGHT HALF BLACKU+2B18DIAMOND WITH TOP HALF BLACKU+2B19DIAMOND WITH BOTTOM HALF BLACKU+2B1ADOTTED SQUAREU+2B1BBLACK LARGE SQUAREU+2B1CWHITE LARGE SQUAREU+2B1DBLACK VERY SMALL SQUAREU+2B1EWHITE VERY SMALL SQUAREU+2B1FBLACK PENTAGONU+2B20WHITE PENTAGONU+2B21WHITE HEXAGONU+2B22BLACK HEXAGONU+2B23HORIZONTAL BLACK HEXAGONU+2B24BLACK LARGE CIRCLEU+2B25BLACK MEDIUM DIAMONDU+2B26WHITE MEDIUM DIAMONDU+2B27BLACK MEDIUM LOZENGEU+2B28WHITE MEDIUM LOZENGEU+2B29BLACK SMALL DIAMONDU+2B2ABLACK SMALL LOZENGEU+2B2BWHITE SMALL LOZENGEU+2B2CBLACK HORIZONTAL ELLIPSEU+2B2DWHITE HORIZONTAL ELLIPSEU+2B2EBLACK VERTICAL ELLIPSEU+2B2FWHITE VERTICAL ELLIPSEU+2B30LEFT ARROW WITH SMALL CIRCLEU+2B31THREE LEFTWARDS ARROWSU+2B32LEFT ARROW WITH CIRCLED PLUSU+2B33LONG LEFTWARDS SQUIGGLE ARROWU+2B34LEFTWARDS TWO-HEADED ARROW WITH VERTICAL STROKEU+2B35LEFTWARDS TWO-HEADED ARROW WITH DOUBLE VERTICAL STROKEU+2B36LEFTWARDS TWO-HEADED ARROW FROM BARU+2B37LEFTWARDS TWO-HEADED TRIPLE DASH ARROWU+2B38LEFTWARDS ARROW WITH DOTTED STEMU+2B39LEFTWARDS ARROW WITH TAIL WITH VERTICAL STROKEU+2B3ALEFTWARDS ARROW WITH TAIL WITH DOUBLE VERTICAL STROKEU+2B3BLEFTWARDS TWO-HEADED ARROW WITH TAILU+2B3CLEFTWARDS TWO-HEADED ARROW WITH TAIL WITH VERTICAL STROKEU+2B3DLEFTWARDS TWO-HEADED ARROW WITH TAIL WITH DOUBLE VERTICAL STROKEU+2B3ELEFTWARDS ARROW THROUGH XU+2B3FWAVE ARROW POINTING DIRECTLY LEFTU+2B40EQUALS SIGN ABOVE LEFTWARDS ARROWU+2B41REVERSE TILDE OPERATOR ABOVE LEFTWARDS ARROWU+2B42LEFTWARDS ARROW ABOVE REVERSE ALMOST EQUAL TOU+2B43RIGHTWARDS ARROW THROUGH GREATER-THANU+2B44RIGHTWARDS ARROW THROUGH SUPERSETU+2B45LEFTWARDS QUADRUPLE ARROWU+2B46RIGHTWARDS QUADRUPLE ARROWU+2B47REVERSE TILDE OPERATOR ABOVE RIGHTWARDS ARROWU+2B48RIGHTWARDS ARROW ABOVE REVERSE ALMOST EQUAL TOU+2B49TILDE OPERATOR ABOVE LEFTWARDS ARROWU+2B4ALEFTWARDS ARROW ABOVE ALMOST EQUAL TOU+2B4BLEFTWARDS ARROW ABOVE REVERSE TILDE OPERATORU+2B4CRIGHTWARDS ARROW ABOVE REVERSE TILDE OPERATORU+2B4DDOWNWARDS TRIANGLE-HEADED ZIGZAG ARROWU+2B4ESHORT SLANTED NORTH ARROWU+2B4FSHORT BACKSLANTED SOUTH ARROWU+2B50WHITE MEDIUM STARU+2B51BLACK SMALL STARU+2B52WHITE SMALL STARU+2B53BLACK RIGHT-POINTING PENTAGONU+2B54WHITE RIGHT-POINTING PENTAGONU+2B55HEAVY LARGE CIRCLEU+2B56HEAVY OVAL WITH OVAL INSIDEU+2B57HEAVY CIRCLE WITH CIRCLE INSIDEU+2B58HEAVY CIRCLEU+2B59HEAVY CIRCLED SALTIREU+2B5ASLANTED NORTH ARROW WITH HOOKED HEADU+2B5BBACKSLANTED SOUTH ARROW WITH HOOKED TAILU+2B5CSLANTED NORTH ARROW WITH HORIZONTAL TAILU+2B5DBACKSLANTED SOUTH ARROW WITH HORIZONTAL TAILU+2B5EBENT ARROW POINTING DOWNWARDS THEN NORTH EASTU+2B5FSHORT BENT ARROW POINTING DOWNWARDS THEN NORTH EASTU+2B60LEFTWARDS TRIANGLE-HEADED ARROWU+2B61UPWARDS TRIANGLE-HEADED ARROWU+2B62RIGHTWARDS TRIANGLE-HEADED ARROWU+2B63DOWNWARDS TRIANGLE-HEADED ARROWU+2B64LEFT RIGHT TRIANGLE-HEADED ARROWU+2B65UP DOWN TRIANGLE-HEADED ARROWU+2B66NORTH WEST TRIANGLE-HEADED ARROWU+2B67NORTH EAST TRIANGLE-HEADED ARROWU+2B68SOUTH EAST TRIANGLE-HEADED ARROWU+2B69SOUTH WEST TRIANGLE-HEADED ARROWU+2B6ALEFTWARDS TRIANGLE-HEADED DASHED ARROWU+2B6BUPWARDS TRIANGLE-HEADED DASHED ARROWU+2B6CRIGHTWARDS TRIANGLE-HEADED DASHED ARROWU+2B6DDOWNWARDS TRIANGLE-HEADED DASHED ARROWU+2B6ECLOCKWISE TRIANGLE-HEADED OPEN CIRCLE ARROWU+2B6FANTICLOCKWISE TRIANGLE-HEADED OPEN CIRCLE ARROWU+2B70LEFTWARDS TRIANGLE-HEADED ARROW TO BARU+2B71UPWARDS TRIANGLE-HEADED ARROW TO BARU+2B72RIGHTWARDS TRIANGLE-HEADED ARROW TO BARU+2B73DOWNWARDS TRIANGLE-HEADED ARROW TO BARU+2B76NORTH WEST TRIANGLE-HEADED ARROW TO BARU+2B77NORTH EAST TRIANGLE-HEADED ARROW TO BARU+2B78SOUTH EAST TRIANGLE-HEADED ARROW TO BARU+2B79SOUTH WEST TRIANGLE-HEADED ARROW TO BARU+2B7ALEFTWARDS TRIANGLE-HEADED ARROW WITH DOUBLE HORIZONTAL STROKEU+2B7BUPWARDS TRIANGLE-HEADED ARROW WITH DOUBLE HORIZONTAL STROKEU+2B7CRIGHTWARDS TRIANGLE-HEADED ARROW WITH DOUBLE HORIZONTAL STROKEU+2B7DDOWNWARDS TRIANGLE-HEADED ARROW WITH DOUBLE HORIZONTAL STROKEU+2B7EHORIZONTAL TAB KEYU+2B7FVERTICAL TAB KEYU+2B80LEFTWARDS TRIANGLE-HEADED ARROW OVER RIGHTWARDS TRIANGLE-HEADED ARROWU+2B81UPWARDS TRIANGLE-HEADED ARROW LEFTWARDS OF DOWNWARDS TRIANGLE-HEADED ARROWU+2B82RIGHTWARDS TRIANGLE-HEADED ARROW OVER LEFTWARDS TRIANGLE-HEADED ARROWU+2B83DOWNWARDS TRIANGLE-HEADED ARROW LEFTWARDS OF UPWARDS TRIANGLE-HEADED ARROWU+2B84LEFTWARDS TRIANGLE-HEADED PAIRED ARROWSU+2B85UPWARDS TRIANGLE-HEADED PAIRED ARROWSU+2B86RIGHTWARDS TRIANGLE-HEADED PAIRED ARROWSU+2B87DOWNWARDS TRIANGLE-HEADED PAIRED ARROWSU+2B88LEFTWARDS BLACK CIRCLED WHITE ARROWU+2B89UPWARDS BLACK CIRCLED WHITE ARROWU+2B8ARIGHTWARDS BLACK CIRCLED WHITE ARROWU+2B8BDOWNWARDS BLACK CIRCLED WHITE ARROWU+2B8CANTICLOCKWISE TRIANGLE-HEADED RIGHT U-SHAPED ARROWU+2B8DANTICLOCKWISE TRIANGLE-HEADED BOTTOM U-SHAPED ARROWU+2B8EANTICLOCKWISE TRIANGLE-HEADED LEFT U-SHAPED ARROWU+2B8FANTICLOCKWISE TRIANGLE-HEADED TOP U-SHAPED ARROWU+2B90RETURN LEFTU+2B91RETURN RIGHTU+2B92NEWLINE LEFTU+2B93NEWLINE RIGHTU+2B94FOUR CORNER ARROWS CIRCLING ANTICLOCKWISEU+2B95RIGHTWARDS BLACK ARROWU+2B96EQUALS SIGN WITH INFINITY ABOVEU+2B97SYMBOL FOR TYPE A ELECTRONICSU+2B98THREE-D TOP-LIGHTED LEFTWARDS EQUILATERAL ARROWHEADU+2B99THREE-D RIGHT-LIGHTED UPWARDS EQUILATERAL ARROWHEADU+2B9ATHREE-D TOP-LIGHTED RIGHTWARDS EQUILATERAL ARROWHEADU+2B9BTHREE-D LEFT-LIGHTED DOWNWARDS EQUILATERAL ARROWHEADU+2B9CBLACK LEFTWARDS EQUILATERAL ARROWHEADU+2B9DBLACK UPWARDS EQUILATERAL ARROWHEADU+2B9EBLACK RIGHTWARDS EQUILATERAL ARROWHEADU+2B9FBLACK DOWNWARDS EQUILATERAL ARROWHEADU+2BA0DOWNWARDS TRIANGLE-HEADED ARROW WITH LONG TIP LEFTWARDSU+2BA1DOWNWARDS TRIANGLE-HEADED ARROW WITH LONG TIP RIGHTWARDSU+2BA2UPWARDS TRIANGLE-HEADED ARROW WITH LONG TIP LEFTWARDSU+2BA3UPWARDS TRIANGLE-HEADED ARROW WITH LONG TIP RIGHTWARDSU+2BA4LEFTWARDS TRIANGLE-HEADED ARROW WITH LONG TIP UPWARDSU+2BA5RIGHTWARDS TRIANGLE-HEADED ARROW WITH LONG TIP UPWARDSU+2BA6LEFTWARDS TRIANGLE-HEADED ARROW WITH LONG TIP DOWNWARDSU+2BA7RIGHTWARDS TRIANGLE-HEADED ARROW WITH LONG TIP DOWNWARDSU+2BA8BLACK CURVED DOWNWARDS AND LEFTWARDS ARROWU+2BA9BLACK CURVED DOWNWARDS AND RIGHTWARDS ARROWU+2BAABLACK CURVED UPWARDS AND LEFTWARDS ARROWU+2BABBLACK CURVED UPWARDS AND RIGHTWARDS ARROWU+2BACBLACK CURVED LEFTWARDS AND UPWARDS ARROWU+2BADBLACK CURVED RIGHTWARDS AND UPWARDS ARROWU+2BAEBLACK CURVED LEFTWARDS AND DOWNWARDS ARROWU+2BAFBLACK CURVED RIGHTWARDS AND DOWNWARDS ARROWU+2BB0RIBBON ARROW DOWN LEFTU+2BB1RIBBON ARROW DOWN RIGHTU+2BB2RIBBON ARROW UP LEFTU+2BB3RIBBON ARROW UP RIGHTU+2BB4RIBBON ARROW LEFT UPU+2BB5RIBBON ARROW RIGHT UPU+2BB6RIBBON ARROW LEFT DOWNU+2BB7RIBBON ARROW RIGHT DOWNU+2BB8UPWARDS WHITE ARROW FROM BAR WITH HORIZONTAL BARU+2BB9UP ARROWHEAD IN A RECTANGLE BOXU+2BBAOVERLAPPING WHITE SQUARESU+2BBBOVERLAPPING WHITE AND BLACK SQUARESU+2BBCOVERLAPPING BLACK SQUARESU+2BBDBALLOT BOX WITH LIGHT XU+2BBECIRCLED XU+2BBFCIRCLED BOLD XU+2BC0BLACK SQUARE CENTREDU+2BC1BLACK DIAMOND CENTREDU+2BC2TURNED BLACK PENTAGONU+2BC3HORIZONTAL BLACK OCTAGONU+2BC4BLACK OCTAGONU+2BC5BLACK MEDIUM UP-POINTING TRIANGLE CENTREDU+2BC6BLACK MEDIUM DOWN-POINTING TRIANGLE CENTREDU+2BC7BLACK MEDIUM LEFT-POINTING TRIANGLE CENTREDU+2BC8BLACK MEDIUM RIGHT-POINTING TRIANGLE CENTREDU+2BC9NEPTUNE FORM TWO…and 54 more characters.