diff --git a/languages/gdscript/highlights.scm b/languages/gdscript/highlights.scm
index 685373a..c086869 100644
--- a/languages/gdscript/highlights.scm
+++ b/languages/gdscript/highlights.scm
@@ -17,6 +17,138 @@
 (attribute_call (identifier) @function.method)
 (base_call (identifier) @function.method)
 (call (identifier) @function)
+
+; Global built-in functions from @GlobalScope and @GDScript.
+((call (identifier) @function @function.builtin)
+  (#any-of? @function.builtin
+    "Color8"
+    "abs"
+    "absf"
+    "absi"
+    "acos"
+    "acosh"
+    "angle_difference"
+    "asin"
+    "asinh"
+    "assert"
+    "atan"
+    "atan2"
+    "atanh"
+    "bezier_derivative"
+    "bezier_interpolate"
+    "bytes_to_var"
+    "bytes_to_var_with_objects"
+    "ceil"
+    "ceilf"
+    "ceili"
+    "char"
+    "clamp"
+    "clampf"
+    "clampi"
+    "convert"
+    "cos"
+    "cosh"
+    "cubic_interpolate"
+    "cubic_interpolate_angle"
+    "cubic_interpolate_angle_in_time"
+    "cubic_interpolate_in_time"
+    "db_to_linear"
+    "deg_to_rad"
+    "dict_to_inst"
+    "ease"
+    "error_string"
+    "exp"
+    "floor"
+    "floorf"
+    "floori"
+    "fmod"
+    "fposmod"
+    "get_stack"
+    "hash"
+    "inst_to_dict"
+    "instance_from_id"
+    "inverse_lerp"
+    "is_equal_approx"
+    "is_finite"
+    "is_inf"
+    "is_instance_id_valid"
+    "is_instance_of"
+    "is_instance_valid"
+    "is_nan"
+    "is_same"
+    "is_zero_approx"
+    "len"
+    "lerp"
+    "lerp_angle"
+    "lerpf"
+    "linear_to_db"
+    "log"
+    "max"
+    "maxf"
+    "maxi"
+    "min"
+    "minf"
+    "mini"
+    "move_toward"
+    "nearest_po2"
+    "ord"
+    "pingpong"
+    "posmod"
+    "pow"
+    "print"
+    "print_debug"
+    "print_rich"
+    "print_stack"
+    "print_verbose"
+    "printerr"
+    "printraw"
+    "prints"
+    "printt"
+    "push_error"
+    "push_warning"
+    "rad_to_deg"
+    "rand_from_seed"
+    "randf"
+    "randf_range"
+    "randfn"
+    "randi"
+    "randi_range"
+    "randomize"
+    "range"
+    "remap"
+    "rid_allocate_id"
+    "rid_from_int64"
+    "rotate_toward"
+    "round"
+    "roundf"
+    "roundi"
+    "seed"
+    "sign"
+    "signf"
+    "signi"
+    "sin"
+    "sinh"
+    "smoothstep"
+    "snapped"
+    "snappedf"
+    "snappedi"
+    "sqrt"
+    "step_decimals"
+    "str"
+    "str_to_var"
+    "tan"
+    "tanh"
+    "type_convert"
+    "type_exists"
+    "type_string"
+    "typeof"
+    "var_to_bytes"
+    "var_to_bytes_with_objects"
+    "var_to_str"
+    "weakref"
+    "wrap"
+    "wrapf"
+    "wrapi"))
 ; Super calls have two forms:
 ; - super() to call this method's parent implementation,
 ; - super.other() to call another method's parent implementation.