In each frame, at any time, one and only one window is designated as
@dfn{selected within the frame}. The frame's cursor appears in that
-window. At ant time, one frame is the selected frame; and the window
+window. At any time, one frame is the selected frame; and the window
selected within that frame is @dfn{the selected window}. The selected
window's buffer is usually the current buffer (except when
@code{set-buffer} has been used). @xref{Current Buffer}.