MATLAB: Representing and empty cell

struct

I have a problem in setting this right.
I have this struct,
wordstruct =
    a: {'amal'  'asyik'  'ampun'}
    b: {'bola'  'busuk'  'basi'}
    c: {'cacing'  'campur'  'cucuk'}
    .
    .
    .
    z: {''..........''}
i want to compare an input of a string with a word in one of the fields in the struct so i tried this,I want to display that if the word does not exist, it'll say the word is invalid.
I know that if I have this line of code and the word does exist, it'll show me something like this,
word='bola'
(strfind(wordstruct.(word(1)),word);
ans =
    [1]    []    []
and if word='bell' %does not exist in struct
ans =
    []    []    []
however im having difficulty to represent the empty cell in my if statement where i have it like this:
if (strfind(wordstruct.(word(1)),word)= %%%%IDK this part
fprintf('this word is invalid');
else
fprintf('%s is in the wordbank',word);
end

Best Answer

Does this help?
wordstruct.a = {'amal'  'asyik'  'ampun'};
wordstruct.b = {'bola'  'busuk'  'basi'};
wordstruct.c = {'cacing'  'campur'  'cucuk'};
word = 'bola';
if any( strcmp( word, wordstruct.('b') ) )
   disp( 'found the word' ) 
else
  disp( 'failed' )  
end
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