Response

Point count

Description

Example; partner opens 1♥

2♥

6-9 (Limit)

4-card or longer support.  (Occasionally only three cards.)

3♥

10 12 (Limit)

4-card or longer support.

4♥

13-15 (Limit)

4-card or longer support.

1NT

6-9 (Limit)

Denies 4 spades.  May not be balanced.

2NT

10-12 (Limit)

Denies 4 spades, or any 5-card suit.

3NT

13-15 (Limit)

1♠

6+ (Forcing)

At least four spades, might have a longer minor if fewer than 11 points.

2♣/♦

9+ (Forcing)

At least four cards in the suit.

2♠

16+

At least five cards in the suit. 

3♣/♦

(Forcing to game)