Here is a list of posts related to vocabulary. Also, go to the False Friends page for words that get confused between English and Spanish.
10-Aug-2012: Senses: "Bad Touch" Vocabulary
03-Aug-2012: Senses: "Neutral Touch" Vocabulary
01-Aug-2012: Senses: "Good Touch" Vocabulary
11-Jul-2012: Senses: Taste Vocabulary
04-Jul-2012: Senses: Smell Vocabulary
27-Jun-2012: Senses: Hearing Vocabulary
21-Jun-2012: Senses: Sight/Vision Vocabulary
13-Jun-2012: Football and Soccer Vocabulary
08-Jun-2012: Environmental Vocabulary
01-Jun-2012: Word Wednesday: "Sibling"
25-May-2012: "Big" Words
18-May-2012: Stomach and Belly Vocabulary
16-May-2012: Vocabulary Related to Waste, Rubbish, and Trash
02-May-2012: Song and Exercise: "Downtown"
02-Apr-2012: Easter Break
28-Mar-2012: Phrases with "like"
26-Mar-2012: Computer Vocabulary
23-Mar-2012: "When in Rome..."
21-Mar-2012: Miss, Mr., Mrs., Ms. (Titles in English)
12-Mar-2012: Phrases for Introductions
07-Mar-2012: Important Vocabulary: "a pair of..."
05-Mar-2012: "use" vs. "wear"
29-Feb-2012: Leap Year
17-Feb-2012: Yiddish loanwords in English
24-Aug-2011: Naming customs in the U.S.A.
10-Aug-2011: Naming customs in Costa Rica
02-Aug-2011: Holidays and vacations
29-Jul-2011: Online practice: esl-lab.com and engvid.com
18-Jun-2011: Loanwords, part 4: German words in English
15-Jun-2011: Loanwords, part 3: Spanish words in English
12-Jun-2011: Loanwords, part 2: French "-et" words
05-Jun-2011: Loanwords intro
09-May-2011: know, meet, see, visit
03-May-2011: since, for
19-Apr-2011: "semana santa"
04-Apr-2011: bring, take
28-Mar-2011: remember, remind
07-Mar-2011: grow up, grow
28-Feb-2011: Use of "have"
21-Feb-2011: it's, its
14-Feb-2011: Irregular plurals
07-Feb-2011: so, too, very
24-Jan-2011: say, tell, speak
24-Jan-2011: listen, hear
18-Jan-2011: borrow, lend, loan
24-Dec-2010: see, look, watch