10. The computing device of claim 9 , comprising: receiving input corresponding to a selection of a node presented in the second tier of nodes; determining whether the selected node presented in the second tier of nodes is a word from the candidate list; and when the selected node is a partial match for a word from the candidate list, presenting a third tier of nodes for display on the display interface, respective nodes of the third tier of nodes comprising at least one additional character relative to the characters of the selected node presented in the second tier and representing one or more words that begin with the characters of the selected node presented in the second tier.
10. The computing device of claim 9 , comprising: receiving input corresponding to a selection of a node presented in the second tier of nodes; determining whether the selected node presented in the second tier of nodes is a word from the candidate list; and when the selected node is a partial match for a word from the candidate list, presenting a third tier of nodes for display on the display interface, respective nodes of the third tier of nodes comprising at least one additional character relative to the characters of the selected node presented in the second tier and representing one or more words that begin with the characters of the selected node presented in the second tier. 11. The computing device of claim 10 , at least one of: a node in the second tier of nodes corresponding to a word from the candidate list presented in a different manner than a node in the second tier corresponding to a partial match for a word from the candidate list, or the second tier of nodes comprising at least one node comprising a word from the candidate list and at least one node comprising a partial match for a word from the candidate list.