cipher - Bird is NOT the word!

I can't get into my computer. It's password protected, you see, and I got hit by a cement truck this morning in front of the Compound Word Store.

Luckily, I have this nifty cheat sheet. It was conceived for just such an occasion, but as my head is still quite scrambled, I need help deciphering it.

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In each of the word pictures below is the word "word." Now picture one single, unique word that can replace all of the "word" words so that the new word, when combined with the picture depicted by the "word" picture, will make a new, commonplace phrase, concept or—you guessed it!—word.
Next, use these numbers to get the password: {4,5,6,3,4,5}
The password and new word will be related.

1.

2.

3.

4.

5.

6.

Hint:

Answer

I think that @Bass has the right idea with

FOOT being the key word.

The six words might be

footlooSe (Kick off your Sunday shoes!)
foot creaM
squarE foot
footbaLl
foothilLs
pussYfoot

Which means that the final answer is

SMELLY, by putting together the nth letter of the non-root word (Thanks, @Chowzen!)